Des faits qui prouvent que les animaux sont BIEN plus étranges que vous ne le pensiez

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Transcript

00:00:00Well, let's be realistic. We, humans, we are rather ordinary.

00:00:06We are not superheroes with superpowers, are we?

00:00:10What? You were not aware?

00:00:13The animal world, on the other hand, has a lot of superheroes.

00:00:18Some creatures live forever, others seem to be making fun of gravity laws.

00:00:23Others are still immune to venom, and others can finally run on water.

00:00:29Some of them will give you chills.

00:00:32The first superpower on the list is the ability to live without water.

00:00:36Kangaroo rats can run out of water for years.

00:00:39In fact, it does not bother them to live without water.

00:00:42Humans, on the other hand, can only survive three days without water.

00:00:46Human, 0, rat, kangaroo, 1.

00:00:50These small animals live in extremely arid desert areas

00:00:54and must draw water from the seeds and plants they eat.

00:00:57Although this may sound a little disturbing,

00:01:00kangaroo rats also know how to draw water from their urine before going to the toilet.

00:01:05Thus, they do not lose a single drop of this precious moisture.

00:01:09This could prove useful during sports events.

00:01:12Let me now introduce you to the Peter Parker of the animal world.

00:01:16Absolutely. It looks like Spiderman is very real, but he is not human.

00:01:20Here is a gecko lizard, or more simply a gecko.

00:01:23This creature has the wonderful ability to climb on all kinds of vertical surfaces

00:01:28and can even walk on the ceiling.

00:01:30This feat that defies the laws of gravity is possible thanks to the unique plantar cushion of the lizard,

00:01:36covered with tiny hairs.

00:01:38They can cling to almost all surfaces,

00:01:41whether smooth, hard, rough or soft.

00:01:44Another funny fact about these lizards is that they have no eyelids.

00:01:49So they always keep a wide open eye on what is happening around them.

00:01:54If you wonder how they protect their eyes, here is the answer.

00:01:59Their eyes are covered with a transparent membrane, the cornea.

00:02:03Of course, they cannot close their eyes, and if they have something in their eye,

00:02:07they simply lick it.

00:02:09It's true, they clean their eyeballs by licking them.

00:02:13One can imagine that this is another superpower.

00:02:16Supersonic superpowers?

00:02:18Yes, of course.

00:02:20A subtropical shrimp of about 2.5 cm disorients its prey with a shock wave.

00:02:27Despite its modest size, the pistol shrimp is one of the noisiest marine animals.

00:02:32When the shrimp makes its claws snap, it makes a noise as loud as a sonic boom.

00:02:37Naturally, this sound stuns the prey, and the shrimp can catch it without much effort.

00:02:43In the world of comics, there is venom.

00:02:46In the animal world, there is a type that can be called anti-venom.

00:02:50Opossums are known for their very practical trick,

00:02:53which is to pretend to be dead when a predator attacks them.

00:02:57But that's not all.

00:02:59These animals are also immune to snake venom and viper pelliades.

00:03:05The secret lies in a peptide that helps opossums neutralize dangerous chemical substances.

00:03:11This is why snakes are one of the favorite snacks of the opossum diet.

00:03:17Their diet is also made up of a curious element, ticks.

00:03:21An opossum can catch about 5,000 ticks per season,

00:03:25and most of them are taken on its own body.

00:03:28Imagine a fish so famous that it is called a dangerous fish.

00:03:32This is Mbenga, which literally translates as dangerous fish in Swahili.

00:03:37This monster lives in fresh water and does not hesitate to eat a crocodile.

00:03:41Not an entire crocodile, but the Mbenga can easily take a bite.

00:03:47Finally, to be honest, Mbengas are afraid of crocodiles, just like crocodiles are afraid of Mbengas.

00:03:53You are watching this video with the same intention, aren't you?

00:03:57Well, all the gadgets we own, we owe them in a certain way to electric opossums.

00:04:03All gadgets have batteries, and opossums contributed a lot to the invention of an electric battery in 1800.

00:04:09I know, I know, batteries have changed in an unrecognizable way since then,

00:04:15but still, the first electric battery was invented thanks to electric opossums.

00:04:20Anyway, if you see one and you want to thank it for its magnificent invention, avoid doing it.

00:04:27The problem is that they can deliver shocks up to 860 volts.

00:04:32You don't want to experience it.

00:04:35Now let's talk about Count Dracula of the animal kingdom.

00:04:38No, I'm not talking about bats.

00:04:40I'm talking about the crocodile vampire fish.

00:04:43These fish are known as Payara and have two long tails that exceed their lower jaw.

00:04:48That's why some people associate them with vampires.

00:04:53Hippos are the gurus of beauty since they know how to save a fortune on skin care.

00:04:59Living under the harsh African sun, these secret animals have a red oily substance that looks like sweat evaporating

00:05:07and keeps the body of the animals cool.

00:05:10In addition, this liquid serves both moisturizing creams, sunscreen and antibiotics,

00:05:16but they are not the only ones to have such a superpower.

00:05:20Hippos also know how to produce a natural sunscreen, but they use it to protect their eyes.

00:05:28These are amino acid pigments.

00:05:31These pigments act like special filters that also contribute to the clarity of their vision.

00:05:36This is what I call multitasking.

00:05:39Hurricanes have dark spots around their eyes, which makes them even cuter.

00:05:45But these black circles are not there just to make our friends even more adorable.

00:05:50They also act as integrated sunglasses.

00:05:54The dark fur of the spots blocks the burning sun, which allows the hurricanes to look directly at the sky.

00:06:01In addition, thanks to this, the sentinel, a hurricane that watches birds and other predators,

00:06:08can easily see the danger and alert its companions.

00:06:13Wild goats are famous for their climbing skills,

00:06:16but it is the Alps' Bouquetin, in northern Italy, that is the champion.

00:06:21This animal can climb almost all vertical surfaces, thus defying several laws of physics.

00:06:27It is interesting to note that the animals that walk on the walls of the steepest cliffs

00:06:32are generally sea goats, accompanied by their young.

00:06:36The big males prefer to keep their distance and use flat horizontal surfaces.

00:06:42They are clever.

00:06:43Salmons are skilled navigators who could embarrass most drivers.

00:06:48However, this competition would not be fair.

00:06:51After all, salmon can feel the magnetic field of the planet and use it to navigate if they get lost.

00:06:58If you have trouble navigating in the city, a salmon could help you.

00:07:03Do not forget to tie the aquarium.

00:07:06Some animals protect themselves with venom or vile bites,

00:07:10while others use chemical tricks to protect themselves.

00:07:15Listen to this.

00:07:16Some species of millipedes produce hydrogen cyanide and lecithin when they feel threatened.

00:07:23Hydrogen cyanide is inodorous, but very toxic.

00:07:27A single small millipede can not seriously injure you,

00:07:30but you risk having burns, even clots, if your skin is sensitive.

00:07:35In addition, to make the picture even more frightening,

00:07:38some millipedes shine in the dark.

00:07:41So be careful.

00:07:43And if you see a bright bright spot at night, save yourself as soon as possible.

00:07:49When the millipede feels threatened,

00:07:51it sprays a burning liquid from the end of its abdomen, emitting a dry noise.

00:07:56As soon as the lepidoptera feels a danger,

00:07:59a chemical reaction occurs in special tanks located in its abdomen.

00:08:03The heat released by this process almost reaches the boiling point

00:08:07and also produces a special gas that triggers ejection.

00:08:11This super protection is generally fatal for attacking insects.

00:08:15I imagine.

00:08:16Jesus Christ lizards have the strange ability to run on water.

00:08:21First of all, their hind legs are equipped with long toes,

00:08:25whose skin stripes can spread over the water.

00:08:28Thus, a larger surface of the lizard's foot is in contact with the water.

00:08:32Then, when it runs on the water, its legs move at an incredible speed.

00:08:37It creates small air pockets that prevent the animal from getting bored

00:08:41and keeps it on the surface.

00:08:43Leopards may not always be very interesting,

00:08:46but that does not make them less surprising.

00:08:48These tiny animals can jump about 50 times the length of their body.

00:08:53If people could do that much,

00:08:55we would be able to jump approximately 1.5 km in the air.

00:08:59Well, let's try.

00:09:01The most curious thing about the amazing ability of leopards

00:09:04is that they shoot most of the power of their jumps from their toes

00:09:09and not from their knees.

00:09:10What is your favorite animal superpower?

00:09:13I vote for the kangaroo rat.

00:09:14I don't like to wait in line to go to the bathroom.

00:09:18The simple sight of its wing almost stops our heart.

00:09:21That's why you feel so nervous about going for a swim.

00:09:24This giant hunter with teeth in the shape of a knife is well known.

00:09:28It's the great white shark.

00:09:30And if this ultimate terror of the oceans had to fold luggage,

00:09:34it should be for a good reason.

00:09:36But who could be afraid of the teeth of the sea?

00:09:38A giant Lovecraftian monster

00:09:40that would even pass the Megalodon for fresh food.

00:09:43No, not at all.

00:09:45Nothing cleans the oceans as efficiently as orcas.

00:09:48When a group of them is looking for food,

00:09:50like otters or squids,

00:09:52even the biggest and scariest sharks leave the area without even turning around.

00:09:56We don't know if they specifically target white sharks

00:09:59or if they only prevent the competition from entering the area.

00:10:02But according to the experts,

00:10:04sharks flee in front of them

00:10:06and sometimes don't come back before the next year.

00:10:09And that makes sense.

00:10:11Orcas are much bigger than the great white sharks

00:10:13and they have many teeth that they can use to satisfy their voracious appetite.

00:10:17Orcas are also very intelligent

00:10:19and work as a team to get what they want.

00:10:22Whether it's catching a bunch of fish,

00:10:24removing seals from the ice

00:10:26or even hunting humpback whales.

00:10:29So, even if the great white shark is afraid of the powerful orca,

00:10:33should we do the same?

00:10:35Personally, I keep my distance with any wild animal.

00:10:39But you may be reassured to know

00:10:41that orcas are very difficult in terms of food

00:10:44and humans do not appear on their menu.

00:10:47So it is unlikely that they change their diet

00:10:49simply because you are in the parishes.

00:10:52By the way, orcas are not whales.

00:10:54Technically, they belong to the largest species of dolphins.

00:10:57And sharks are also afraid of their cousins,

00:10:59the great dolphins.

00:11:01One of them is stronger than a shark,

00:11:03so imagine when they are in a group.

00:11:05Sharks are easily outdone by the great agility of these marine mammals

00:11:09who use their long muzzle like a belly.

00:11:12This disturbs the shark so much

00:11:14that it simply prefers to leave the area.

00:11:16Now, if we think of the other great hunters of the animal kingdom,

00:11:19wolves always come to mind.

00:11:21A marten can take over a vast territory

00:11:23and as they are at the top of the food chain,

00:11:25they can choose to hunt in groups.

00:11:28Wolves are smart, fast and agile,

00:11:30but their greatest advantage is probably their number.

00:11:33If grizzlies or pumas could take over

00:11:35in front of a single one of them,

00:11:37the number always plays in favor of wolves.

00:11:39The hunter then becomes the hunted.

00:11:42And even alone, the wolf remains terrifying.

00:11:45It is too difficult for another animal

00:11:47to take on a lone wolf,

00:11:49so they are usually left alone.

00:11:51Imagine yourself now,

00:11:53in a group of wolves,

00:11:55to be able to track a boar

00:11:57at temperatures below zero,

00:11:59dressed in orange,

00:12:01in a completely snowy environment.

00:12:03The Siberian tiger excels in this domain.

00:12:06Long over 3 meters

00:12:08and weighing up to 180 kg,

00:12:10it is the largest of all wild cats.

00:12:12This feline could easily jump over you,

00:12:14while carrying twice its own weight.

00:12:17The only animal that can really challenge it

00:12:19would be a fairly large brown bear

00:12:21and it would be a real challenge

00:12:23Not surprising that the Siberian tiger

00:12:25is at the top of the food chain

00:12:27where it lives.

00:12:29As for the big boss in South America,

00:12:31it would be the green anaconda.

00:12:33Even the jaguars and caimans

00:12:35are not calm

00:12:37in front of the world's largest snake.

00:12:39The troubled waters of the rivers

00:12:41and their banks perfectly hide

00:12:43this giant snake,

00:12:45which passes totally unnoticed.

00:12:47Let's wait for a victim

00:12:49to come a little too close.

00:12:51It uses its curved and thin teeth

00:12:53and its 4.5 meters of muscles

00:12:55to keep its meal in place.

00:12:57Fortunately for most other animals,

00:12:59after swallowing its meal,

00:13:01an anaconda can spend weeks

00:13:03or even months digesting it.

00:13:05But the biggest snake in the world

00:13:07is not the most dangerous.

00:13:09This title belongs to the black mamba.

00:13:11Lions,

00:13:13spotted hyenas,

00:13:15giraffes and even elephants

00:13:17avoid it at all costs.

00:13:19It can reach 4 meters in length.

00:13:21It is the second longest venomous snake

00:13:23in the world,

00:13:25according to the Royal Cobra.

00:13:27The African black mamba

00:13:29is the fastest snake in the world.

00:13:31It can run up to 19 km per hour.

00:13:33It is about the maximum speed

00:13:35of most treadmills.

00:13:37This neighbor of the green anaconda

00:13:39may not be the boss,

00:13:41but it still deserves to be mentioned.

00:13:43Very few animals are ready

00:13:45to face a creature as heavy as it.

00:13:47It has 6,000 special cells

00:13:49that can produce up to 800 volts of electricity.

00:13:51It is three to six times stronger

00:13:53than a brick wall.

00:13:55It is enough to knock down a horse

00:13:57or to light a Christmas tree.

00:13:59In 2019, an American aquarium

00:14:01hung electric garlands

00:14:03at its pool in Anguilla.

00:14:05Each time the anaconda launched a discharge,

00:14:07the bulbs lit up.

00:14:09It seems that the electric anaconda

00:14:11can give a double discharge

00:14:13thanks to a so-called revolting power.

00:14:15This electric anaconda

00:14:17needs to breathe air

00:14:19by going up to the surface

00:14:21every ten minutes

00:14:23to fill its mouth with air.

00:14:25Yes, its only lung is in its mouth.

00:14:27And what about the king of the jungle?

00:14:29He wears this title

00:14:31just in books and movies

00:14:33because, to begin with,

00:14:35he lives in the African plains

00:14:37and not in the forest.

00:14:39And a whole series of predators

00:14:41like hyenas, leopards

00:14:43can stop this big feline

00:14:45from a well-placed sabre shot.

00:14:47If we stick to the only bite force,

00:14:49the crocodile of the Nile

00:14:51has the largest ever measured.

00:14:53Its jaws are five times more powerful

00:14:55than that of a lion.

00:14:57Since it lives in the water,

00:14:59it would be enough to avoid bathing.

00:15:01But good luck to avoid a lion.

00:15:03They can run at 80 km per hour,

00:15:05jump the length of a bus

00:15:07and even climb trees.

00:15:09But the main competitor of the lion

00:15:11is the lycaon.

00:15:13These two species often fight

00:15:15because they hunt the same food

00:15:17in the same area.

00:15:19In front of a group of lions,

00:15:21lycaons have no choice but to flee.

00:15:23But they have an advantage

00:15:25over felines, their endurance.

00:15:27Lions can reach an incredible speed

00:15:29but only over a short distance.

00:15:31It takes too much energy

00:15:33to move its 180 kg of muscles

00:15:35over long distances.

00:15:37On the other hand,

00:15:39the hypopotamus

00:15:41can run very fast

00:15:43and keep a good pace for miles.

00:15:45That's how they hunt,

00:15:47by tiring their lunches.

00:15:49There is still a brave animal

00:15:51to face the king

00:15:53if the latter is too curious,

00:15:55the hypopotamus.

00:15:57They may seem nice and harmless,

00:15:59but hypopotamus are

00:16:01among the most dangerous animals

00:16:03on the planet.

00:16:05According to statistics,

00:16:07hypopotamus weigh as much as a car.

00:16:09Their pointy canines can be longer

00:16:11than your forearm,

00:16:13and they are not afraid of anything.

00:16:15Even lions and crocodiles

00:16:17prefer to keep their distance.

00:16:19Their name means horseback

00:16:21and they spend up to 16 hours a day

00:16:23in immersion.

00:16:25But the funny thing is

00:16:27that hypopotamus don't really know how to swim.

00:16:29If you think you see a swimmer,

00:16:31they actually walk on the bottom.

00:16:33They can still beat

00:16:35Watch out, lion!

00:16:37Hypopotamus may be the real kings of Africa,

00:16:39but I won't get close to them

00:16:41to give them the crown.

00:16:43The forest sovereign is the grizzly.

00:16:45Weighing more than half a ton,

00:16:47one would be wrong to think

00:16:49that these big balls of hair are slow and clumsy.

00:16:51The grizzly can run at 40 km per hour

00:16:53over long distances,

00:16:55climbing, descending

00:16:57and on all terrains.

00:16:59It is the 4x4 of the animal world.

00:17:01Having no natural predator,

00:17:03the grizzly is the only one

00:17:05that can survive in the wild.

00:17:07Fortunately, it sleeps a third of the year.

00:17:09I just hope for you

00:17:11that you will never fall on one of them,

00:17:13especially before they go into hibernation.

00:17:15These bears spend the fall months

00:17:17fattening up to last through the winter,

00:17:19so they are even more hungry than usual.

00:17:21Being the largest bird of prey

00:17:23in North America,

00:17:25the grizzly can be found

00:17:27everywhere in North America,

00:17:29both in the forests and in the mountains.

00:17:31These birds can spot a rabbit

00:17:335 km from the air.

00:17:35It's as if you saw an ant

00:17:37from the top of a 10-story building.

00:17:39Royal eagles can also dive

00:17:41quickly from a very high altitude.

00:17:43During their stings,

00:17:45they reach speeds

00:17:47exceeding 320 km per hour,

00:17:49as fast as a flying arrow.

00:17:51Very good!

00:17:53You dive underwater,

00:17:55in the sea.

00:17:57You admire corals and fish

00:17:59when suddenly,

00:18:01a huge shadow appears above you.

00:18:03You open your eyes

00:18:05and you see a huge creature

00:18:07approaching you,

00:18:09its beaming mouth ready to swallow you.

00:18:11Relax, stay calm,

00:18:13and everything will be fine.

00:18:15This leviathan is a pelican,

00:18:17one of the scariest sea monsters

00:18:19that exist,

00:18:21but in fact,

00:18:23it is not really able

00:18:25to harm anyone.

00:18:27It's late at night

00:18:29in the jungle of Central America.

00:18:31You are in nature

00:18:33to watch the birds

00:18:35and you hear a bat.

00:18:37Excited, you look

00:18:39at your binoculars

00:18:41to suddenly see

00:18:43a face coming out

00:18:45of your worst nightmares.

00:18:47Don't scream,

00:18:49you're going to scare them.

00:18:51It's a riddled bat

00:18:53that is perfectly harmless

00:18:55to the human eye.

00:18:57Its wrinkled face

00:18:59allows them to collect

00:19:01pieces of fruit and juice

00:19:03to eat later.

00:19:05By the way, their Latin name,

00:19:07Centurio Senex,

00:19:09was given to them

00:19:11because of their resemblance

00:19:13to centenarian humans.

00:19:15You walk in a Nepalese national park

00:19:17and decide to wash your face

00:19:19in a river.

00:19:21But suddenly,

00:19:23you find yourself in the water

00:19:25and you breathe again.

00:19:27It's a riddled bat.

00:19:29These reptiles have a long

00:19:31and narrow muzzle

00:19:33that allows them to effectively

00:19:35capture fish while

00:19:37forbidding them to hunt

00:19:39any other prey.

00:19:41Although they are still carnivores,

00:19:43bats are quite shy

00:19:45and quickly move away

00:19:47from humans.

00:19:49At present,

00:19:51you dig in your garden

00:19:53and you notice that something

00:19:55is moving on your shovel.

00:19:57You take a closer look

00:19:59and you drop the tool

00:20:01with horror.

00:20:03A small creature that looks

00:20:05like an alien

00:20:07rushes inside the ground.

00:20:09Don't worry,

00:20:11it's just a riddled bat.

00:20:13These creatures have a particular muzzle

00:20:15that seems to have exploded

00:20:17from the inside.

00:20:19It helps them a lot to move

00:20:21and look for food.

00:20:23It is still moving,

00:20:25touching everything it can reach

00:20:27with its tentacles

00:20:29as if they were tiny fingers.

00:20:31Oh, are you swimming again

00:20:33in the ocean?

00:20:35Well, look on your right,

00:20:37there is a real shark

00:20:39with teeth that run straight

00:20:41on you.

00:20:43No, don't panic,

00:20:45it's just a bull shark

00:20:47We have never reported

00:20:49attacks on humans,

00:20:51but it still has sharp teeth,

00:20:53so don't try to touch it.

00:20:55It may seem calm,

00:20:57but you don't want it to gnaw you,

00:20:59do you?

00:21:01Well, from the ocean to the desert,

00:21:03you are in Australia

00:21:05and you want some water.

00:21:07You see a place where you can

00:21:09maybe find some.

00:21:11Then you start digging in the ground

00:21:13and you come across a creature

00:21:15that is very powerful,

00:21:17because it is a horned devil.

00:21:19Despite its disturbing name,

00:21:21this lizard is harmless to humans.

00:21:23The horns-shaped bones

00:21:25it wears on its skin

00:21:27protect it from predators

00:21:29and birds of prey.

00:21:31The spines are hard,

00:21:33but as long as you don't touch them,

00:21:35everything is fine.

00:21:37Now, if you are arachnophobic,

00:21:39it won't help you much,

00:21:41but the felines you can meet

00:21:43can be very dangerous.

00:21:45These nightmarish creatures

00:21:47don't have darts

00:21:49and don't even bite

00:21:51when they are threatened.

00:21:53The worst they can do,

00:21:55and only if you swallow them,

00:21:57but why would you do the same,

00:21:59is to bite you with their front paw,

00:22:01leaving tiny marks on your fingers.

00:22:03Many people take them

00:22:05as pets,

00:22:07because they are very affectionate

00:22:09towards their owner.

00:22:11Don't worry,

00:22:13they don't bite.

00:22:15The naked ratopes

00:22:17are the sphinx cats

00:22:19among rodents.

00:22:21They are close relatives of ratopes,

00:22:23but they are naked,

00:22:25and they are fascinating in themselves.

00:22:27As they live almost completely underground,

00:22:29they have almost cold blood,

00:22:31but can live at any outside temperature,

00:22:33and their wrinkled skin and flasks

00:22:35don't feel any pain,

00:22:37so that the pointy teeth of others

00:22:39don't bother them.

00:22:41You are once again lost in the jungle,

00:22:43this time in Madagascar.

00:22:45Poor you,

00:22:47the night has fallen,

00:22:49and you are looking for shelter,

00:22:51but when you think you have found

00:22:53a suitable tree to build a shelter,

00:22:55you are frozen in terror.

00:22:57A black hand with long fingers

00:22:59appears on a branch of the tree

00:23:01just above you,

00:23:03with two huge yellow eyes

00:23:05that fix you.

00:23:07This creature

00:23:09is native to Madagascar,

00:23:11and only comes out at night,

00:23:13so you are lucky to see it.

00:23:15It plays the role of a green pea

00:23:17in tropical forests.

00:23:19It hits tree trunks to find insects,

00:23:21and uses its long fingers

00:23:23to reach inside.

00:23:25Tired of being afraid,

00:23:27you try to go home,

00:23:29but the horrors are not over yet.

00:23:31A big red and white snake

00:23:33stands in your way.

00:23:35You know it is a coral snake,

00:23:37a very dangerous venomous species.

00:23:39You stop, and it is only

00:23:41when it finally slips away

00:23:43that you realize it is actually

00:23:45a milk snake from the East.

00:23:47They often imitate venomous snakes,

00:23:49not only coral snakes,

00:23:51to protect themselves from predators.

00:23:53However, if you are not an expert in snakes,

00:23:55it is always better to stay away.

00:23:57Well, this creature

00:23:59will invite itself in your darkest dreams.

00:24:01An African thousand-legged giant.

00:24:03It is big, black, shiny,

00:24:05and it has hundreds of little legs

00:24:07to crawl.

00:24:09And yet, if it had big round eyes,

00:24:11it could even be quite cute.

00:24:13Maybe that's why so many people

00:24:15keep them as pets.

00:24:17This is because they usually live

00:24:19up to 10 years.

00:24:21The thousand-legged giants cannot really bite.

00:24:23Their only defense is to crawl back

00:24:25in a hard ball and secrete an irritating

00:24:27liquid for the pores of their skin.

00:24:29If you dare to touch it,

00:24:31it will bite your eyes or nose later.

00:24:33It's pretty unpleasant.

00:24:35The Goliath spider

00:24:37is another very popular

00:24:39rampant companion animal.

00:24:41It is not dangerous for humans,

00:24:43even if it looks like your worst nightmare.

00:24:45It is one of the largest spiders in the world.

00:24:47And as its name suggests in English,

00:24:49Goliath birdeater,

00:24:51it sometimes hunts small birds

00:24:53to feed.

00:24:55But they are not part of its usual diet.

00:24:57The spider prefers worms and amphibians.

00:24:59However, avoid scaring it.

00:25:01It can still bite or release hairs

00:25:03in case of legitimate defense.

00:25:05The sting is similar to that of a wasp

00:25:07and the hairs can cause a serious

00:25:09skin irritation.

00:25:11But most of the time,

00:25:13this nice giant is just shy

00:25:15and walks away when it sees you.

00:25:17Oh my God,

00:25:19another snake is approaching you.

00:25:21Avoid! You are about to turn around

00:25:23and run when you see a shape with

00:25:25eight legs that cuts the path of the snake

00:25:27and jumps on it.

00:25:29It is another arachnid and it looks even more

00:25:31terrifying than the snake.

00:25:33It is a solifuge.

00:25:35It is not really a spider or a scorpion.

00:25:37These creatures belong to a distinct family.

00:25:39They have become the subject of many urban legends.

00:25:41But in fact,

00:25:43they don't even have venom.

00:25:45Of course, they can bite and their jaws

00:25:47are quite powerful.

00:25:49But solifuges can't hurt a human

00:25:51much, except for the bite.

00:25:53They hide in the sand and the dirt

00:25:55and even in snakes.

00:25:57And now,

00:25:59imagine a cloporte.

00:26:01Not really a beauty,

00:26:03but since it is small, it's okay.

00:26:05But if it was ten times bigger,

00:26:07no, it wouldn't go there at all.

00:26:09Yet, a creature like this exists.

00:26:11It is a giant batinome.

00:26:13Fortunately, it hides in deep,

00:26:15dark and cold waters,

00:26:17so it never appears in your garden.

00:26:19Giant batinomes reach the same size

00:26:21because of what is called

00:26:23the creatures of the depths.

00:26:25The creatures of the depths must bear

00:26:27a great pressure of water,

00:26:29extremely cold temperatures

00:26:31and little food,

00:26:33which slows down their metabolism.

00:26:35Isopods don't move much

00:26:37and most often,

00:26:39they wait for a small insect

00:26:41or a crustacean to reach them

00:26:43so that they can bite it.

00:26:45And even if seen from below,

00:26:47it looks like a horrible creature

00:26:49with a lot of legs,

00:26:51go ahead.

00:26:55And we are ready to go.

00:26:57The crocodile of the Nile

00:26:59goes much faster than the hippopotamus.

00:27:01It can go up the river in a countercurrent

00:27:03and its body is designed to swim in rapids.

00:27:05It weighs as much as two refrigerators

00:27:07and is considered

00:27:09the heaviest reptile on the planet.

00:27:11It can swim up to 35 km per hour.

00:27:13The hippopotamus

00:27:15doesn't really know how to swim.

00:27:17It is content to walk on the bottom

00:27:19and to push itself on the big rocks

00:27:21it finds.

00:27:23It can close its nostrils

00:27:25to slide a little under the water

00:27:27but it lets itself be distanced

00:27:29by the crocodile.

00:27:31The crocodile reaches the shore

00:27:33and starts running across the field.

00:27:35But be careful,

00:27:37the hippopotamus catches up

00:27:39at full speed.

00:27:41Even if it is huge,

00:27:43the hippopotamus can sprint

00:27:45faster than a human.

00:27:47He won!

00:27:49Beep beep!

00:27:51Here is a big geocuckoo.

00:27:53But what is running away like that?

00:27:55Ah yes, it is this coyote.

00:27:57But be careful, it catches up to you.

00:27:59The big geocuckoo can run up to 30 km per hour

00:28:01or even a little faster

00:28:03when it is really hungry.

00:28:05And despite what we see in cartoons,

00:28:07the coyote is actually twice as fast as it.

00:28:09But the Looney Tunes version

00:28:11is still more fun.

00:28:13On the first line,

00:28:15coming straight from South America,

00:28:17we have the super slow Looney Tunes.

00:28:19And next to it,

00:28:21on the second line,

00:28:23we have an ordinary garden snail.

00:28:25And here we go

00:28:27for the race

00:28:29of the slowest animal

00:28:31in the world.

00:28:33The maximum speed of the Looney Tunes

00:28:35being 0.3 km per hour,

00:28:37it is not surprising

00:28:39that it is compared to a moving giant ear.

00:28:41The snail has made a good start.

00:28:43It can cross a small neighborhood

00:28:45at a speed of 50 m per hour.

00:28:47This invertebrate has only one foot

00:28:49which is covered with a layer

00:28:51of protective batting.

00:28:53I'm not quite sure,

00:28:55but I think the Looney Tunes is

00:28:57always in the same place.

00:28:59It fell asleep and it may last

00:29:01because a Looney Tunes can sleep

00:29:03up to 15 hours a day.

00:29:05It sleeps more than half its life.

00:29:07Oh, the snail has left its sunny area

00:29:09to go to the shade.

00:29:11Let's see who will win this crazy race.

00:29:13A grizzly can easily

00:29:15distance a human.

00:29:17If you prepare something

00:29:19a little too delicious for a picnic,

00:29:21expect to give up your meal.

00:29:23The fastest speed a human can sprint

00:29:25is 45 km per hour.

00:29:27Record established, of course,

00:29:29by Usain Bolt.

00:29:31So he would probably be able

00:29:33to run away in time.

00:29:35But if you are slower than him,

00:29:37then you may have problems.

00:29:39So, of all the bears,

00:29:41which one is the fastest?

00:29:43The white bear?

00:29:45The grizzly?

00:29:47The brown bear?

00:29:49The crocodile bear?

00:29:51Or the cute little panda?

00:29:53On your marks, get set, go!

00:29:55The tension is palpable.

00:29:57The grizzly and the brown bear

00:29:59are neck and neck.

00:30:01A brown bear can run

00:30:03as fast as a grizzly.

00:30:05The crocodile bear

00:30:07can't keep up.

00:30:09The polar bear has made a good start,

00:30:11but it doesn't have the endurance

00:30:13of the grizzly or the brown bear.

00:30:15The grizzly takes the lead.

00:30:17No, it's the brown bear, the grizzly.

00:30:19But wait, where's the panda?

00:30:21What is he doing?

00:30:23I don't think he's interested in the race,

00:30:25but he's too cute.

00:30:27He just finished his third bamboo stem.

00:30:29A panda can eat up to 13 kilos of bamboo per day.

00:30:31That's a lot.

00:30:33But that's it, he's found a shortcut

00:30:35to the top of the hill.

00:30:37He passes in front of the grizzly and the brown bear.

00:30:39It's over, the panda has won.

00:30:41Sorry bears.

00:30:43We all know that the panda is not really fast.

00:30:45It's even one of the slowest bears.

00:30:47However, if you see a panda

00:30:49climbing a hill in your direction,

00:30:51run!

00:30:53A Boeing 747 can reach

00:30:55a top speed of about 1,000 km per hour.

00:30:57The fastest bird is the grey-headed albatross.

00:30:59It can fly up to 130 km per hour

00:31:01and stay in the air

00:31:03for about 10 hours without landing.

00:31:05The pelican falcon is faster,

00:31:07but only by a little bit

00:31:09to catch a prey.

00:31:11Watch out for the pigeons.

00:31:13Wow!

00:31:15The big planes take time to reach the top,

00:31:17but it only takes a few seconds for the albatross.

00:31:19He's in the lead,

00:31:21but a few minutes later,

00:31:23he's back in the race.

00:31:25The lazy one has woken up,

00:31:27but for now,

00:31:29he just raised his arm to reach this branch.

00:31:31The snail is still trying

00:31:33to pass this big rock.

00:31:35The lazy ones spend their time

00:31:37as still as possible

00:31:39to avoid becoming

00:31:41someone else's breakfast.

00:31:43Not great for racing.

00:31:45But what's happening?

00:31:47A third player enters the race.

00:31:49It's the Galapagos tortoise.

00:31:51Its powerful front legs

00:31:53pull this real tank alive.

00:31:55It's four times faster than the garden snail.

00:31:57It's getting interesting.

00:31:59The race is going to last a century.

00:32:01The tortoise runs and avoids all obstacles.

00:32:03Nothing can stop it.

00:32:05Hey, no cheating, lazy one.

00:32:07Stop throwing branches from up there.

00:32:09Meanwhile,

00:32:11a toad is digging.

00:32:13It can eat its own weight

00:32:15and it digs about 5 meters per hour.

00:32:17The American bullfrog

00:32:19is the animal that digs the fastest in the world

00:32:21and it's also very fast on the ground.

00:32:23It can almost equal

00:32:25the speed of a human in a good day.

00:32:27The bullfrog wins this tunnel race

00:32:29quite easily.

00:32:31Too bad the toad can't see where it's going.

00:32:33The toads are not really blind.

00:32:35They just have a very bad sight

00:32:37and they are daltonian.

00:32:39And since they can't wear glasses...

00:32:41Ah, the famous cheetah.

00:32:43It crosses the savannah

00:32:45at full speed.

00:32:47I'm the fastest land mammal

00:32:49in millions of years. I'm the boss.

00:32:51The fastest recorded cheetah

00:32:53was a sprinter named Sarah.

00:32:55At 11 years old,

00:32:57she ran the 100 meters in less than 6 seconds.

00:32:59A cheetah can reach

00:33:01130 km per hour if it sees something tasty.

00:33:03Sarah grew up

00:33:05in an American zoo

00:33:07and she was one of the first cheetahs

00:33:09to have a dog as a friend.

00:33:11Alex and Sarah, friends for life.

00:33:13But just above Sarah

00:33:15passes a very small bat

00:33:17and it beats Sarah.

00:33:19The Brazilian mollusk

00:33:21can reach 160 km per hour.

00:33:23It's the world's fastest cheetah.

00:33:25Now, let's activate our zoom.

00:33:27Our first competitor

00:33:29is the Australian sea sandal.

00:33:31It runs at a speed of 10 km per hour.

00:33:33It may seem small,

00:33:35but brought to its size,

00:33:37it goes at lightning speed.

00:33:39It's as if a human was running

00:33:41as fast as a high-speed train.

00:33:43In the inner corridor

00:33:45is the Saharan silver ant.

00:33:47Ants have a team spirit

00:33:49and are stronger when they work together.

00:33:51They can beat records

00:33:53and lift hundreds of times

00:33:55their own weight and sprint like never before.

00:33:57If Usain Bolt can do

00:33:594 strokes per second,

00:34:01the silver ant can do 50.

00:34:03Scientists have even discovered

00:34:05that they gallop literally

00:34:07when they reach their top speed.

00:34:09And here is our last competitor,

00:34:11the fastest animal on earth.

00:34:13It's a tiny macaw

00:34:15that is no bigger than a sesame seed

00:34:17and it runs almost twice as fast

00:34:19as the sea sandal.

00:34:21If we brought it back to our size,

00:34:23this microscopic animal would beat

00:34:25everything on the planet.

00:34:27It would even surpass the wall of sound.

00:34:29Let's go back to our slower three.

00:34:31Are they done yet?

00:34:33The turtle is in the lead.

00:34:35The snail has finally passed this big rock

00:34:37and the lazy one is ready

00:34:39to catch a second branch.

00:34:41The turtle is less than a meter

00:34:43from the finish line.

00:34:45Wow, I can't stand this suspense anymore.

00:34:47But I think I have time to go get a coffee.

00:34:51Missed again.

00:34:53You just wasted an hour running

00:34:55around with a newspaper rolled up

00:34:57trying to catch this fly

00:34:59that keeps buzzing around your head.

00:35:01Three questions.

00:35:03Why isn't it afraid of you?

00:35:05Why doesn't it go elsewhere?

00:35:07And how does it get so incredibly fast?

00:35:09Flies actually have a pretty normal

00:35:11speed for their size.

00:35:13It's you who is just a little too slow.

00:35:15The brain of a little fly reacts

00:35:17several times faster than yours

00:35:19to what it sees.

00:35:21One second for you is equivalent

00:35:23to five or six seconds for a fly.

00:35:25When a fly looks at you,

00:35:27it sees you as if you were at the bottom

00:35:29of a swimming pool, moving very slowly.

00:35:31Drop a balloon by the window

00:35:33of your room and watch it fall to the ground.

00:35:35This is about the speed

00:35:37with which a fly sees things moving.

00:35:39It has reflexes like a ninja,

00:35:41but it also has special eyes.

00:35:43They are divided into thousands

00:35:45of receptors that capture light

00:35:47at the same time.

00:35:49You use small muscles to turn your eyes

00:35:51and your head to look in different directions.

00:35:53Flies don't have these muscles.

00:35:55They don't need them.

00:35:57They can see in all directions

00:35:59at the same time, or almost.

00:36:01No matter which way you attack,

00:36:03this fly will almost certainly see you coming.

00:36:05You've probably already seen

00:36:07supersonic planes in movies,

00:36:09flying and turning at an incredible speed.

00:36:11A fly is more or less like this,

00:36:13but with much more elaborate wings.

00:36:15It can change direction in mid-flight,

00:36:17stop and dodge any obstacle.

00:36:19It can even calculate a flight path

00:36:21before taking off.

00:36:23Well, this time you're really going

00:36:25to crush this fly.

00:36:27As you lift your paper up,

00:36:29the insect's brain calculates

00:36:31where it's going to land.

00:36:33The fly immediately puts its body

00:36:35in the perfect position,

00:36:37ready to perform an evasion maneuver.

00:36:39If your hand moves in front

00:36:41of the insect, its legs

00:36:43immediately tilt backwards

00:36:45to help it fly in the other direction.

00:36:47Wow, this fly could be

00:36:49an excellent boxer,

00:36:51or a very good goalkeeper.

00:36:53But why is this fly so worth

00:36:55staying in the corner

00:36:57when you're constantly trying to crush it?

00:36:59Well, because your body is a five-star party

00:37:01and your skin is the buffet table,

00:37:03with rows and rows

00:37:05of delicious treats.

00:37:07When you travel during the day,

00:37:09your skin releases sweat,

00:37:11proteins, glucose,

00:37:13salt, sugar, and other

00:37:15chemical products that fly love.

00:37:17Imagine that you're walking

00:37:19in the desert and you're hungry and thirsty.

00:37:21You arrive on a large sand dune

00:37:23and you see it.

00:37:25Food at will.

00:37:27Fruit tables,

00:37:29sweets, sandwiches,

00:37:31and the biggest soda fountain

00:37:33in the world.

00:37:35It looks big, hard, and...

00:37:37round?

00:37:39It's a giant turtle.

00:37:41Now you know why the fly

00:37:43stays in the corner.

00:37:45You're the turtle.

00:37:47You still have a small chance

00:37:49of crushing this fly,

00:37:51but it will still escape

00:37:53eight out of ten.

00:37:55Let's say a fly is placed

00:37:57on the table in your kitchen.

00:37:59Here's what you have to do.

00:38:01You have to aim a few centimeters

00:38:03so you can get rid of it and surprise it.

00:38:05The problem is

00:38:07it's very hard to predict

00:38:09the path the fly will take to escape.

00:38:11If you're too slow,

00:38:13why not call for backup?

00:38:15Here's the Cicindel.

00:38:17Speed, 2.5 meters per second.

00:38:19It can't fly,

00:38:21but it doesn't matter.

00:38:23This coelopter runs so fast

00:38:25it loses sight when it moves.

00:38:27It identifies a target

00:38:29and then starts running at it.

00:38:31It's not a ninja like the fly

00:38:33and it can't change direction.

00:38:35It has to stop before each race.

00:38:37You walk at about

00:38:391.5 meters per second,

00:38:41so the Cicindel

00:38:43is twice as fast as you.

00:38:45But for its size,

00:38:47it's incredibly fast.

00:38:49It runs 125 meters long

00:38:51in one second.

00:38:53Let's say you run 1.80 meters.

00:38:55You should run 230 meters in one second

00:38:57to be that fast.

00:38:59On the same surface as the fly,

00:39:01it has no chance of escaping.

00:39:03Or maybe it's time

00:39:05to call in the air force.

00:39:07The Cicindel is the fastest

00:39:09flying insect in the world.

00:39:11This little creature can reach

00:39:1355 km per hour.

00:39:15It's faster than a bike

00:39:17going down a hill at full speed.

00:39:19The Cicindel's wings

00:39:21also allow it to fly backwards,

00:39:23right, left, up and down,

00:39:25like a helicopter.

00:39:27When the fly moves,

00:39:29it leaves little chance for the fly.

00:39:31The fly, the fly

00:39:33and the Cicindel are fast

00:39:35because they avoid spending

00:39:37too much time outside.

00:39:39There are many hungry creatures

00:39:41in the surroundings,

00:39:43but there is an insect that runs fast

00:39:45because if it stopped...

00:39:47Ouch!

00:39:49To meet such a fast silver ant,

00:39:51you have to go to the Sahara desert.

00:39:53The sand is so hot

00:39:55that the silver ant

00:39:57moves at a speed

00:39:59of 0.5 m per second.

00:40:01It doesn't want to burn its legs.

00:40:03It also has triangle-shaped hairs

00:40:05that reflect heat,

00:40:07which helps it escape the scorching sun.

00:40:09If this ant was human-sized,

00:40:11it could run at 600 km per hour,

00:40:13faster than the fastest car

00:40:15in the world.

00:40:17Another ant holds a speed record.

00:40:19The Dracula ant

00:40:21can't run as fast as the silver ant,

00:40:23but it has the fastest mouth in the world.

00:40:25It can open and close its jaws

00:40:275,000 times in a blink of an eye.

00:40:31Here is another fast insect,

00:40:33this time a little closer to the house

00:40:35or even inside.

00:40:37The American fly can hide

00:40:39in the walls behind the hair

00:40:41almost everywhere.

00:40:43It is almost impossible to catch it.

00:40:45It can run at 1.5 m per second.

00:40:47It's thanks to its six legs,

00:40:49each with three knees.

00:40:51Its legs are covered with small hairs

00:40:53that detect any change in the air.

00:40:55That's why it reacts so fast

00:40:57when you enter the kitchen

00:40:59and you turn on the light.

00:41:01And the world record holder

00:41:03for the fastest creature on Earth

00:41:05is the size of a sesame seed.

00:41:07It's a kind of aquarium

00:41:09and it can move 322 times

00:41:11the length of its body per second.

00:41:13If you grew this aquarium

00:41:15to give it a human size,

00:41:17it could go almost twice as fast

00:41:19and change direction while moving.

00:41:21This makes it the fastest

00:41:23and most unnoticeable creature

00:41:25on the planet.

00:41:27But now let's find animals

00:41:29that allow us to compare.

00:41:31The garden snail

00:41:33belongs to the mollusk family

00:41:35and likes to take its time.

00:41:37If you moved at the speed of a snail,

00:41:39you would take two steps every two hours.

00:41:41But snails don't care.

00:41:43They have existed for hundreds of millions of years.

00:41:45They use their shells to protect themselves,

00:41:47but they also have other tricks.

00:41:49Some snails emit an unpleasant smell

00:41:51so that no one bothers them.

00:41:53If it's too hot and too dry,

00:41:55the snails hide in their shells

00:41:57and lock themselves

00:41:59in the fresh droppings they make.

00:42:01This droppings also helps them

00:42:03climb trees.

00:42:05Sloths are the slowest mammals

00:42:07on the planet.

00:42:09Thanks to their slow metabolism,

00:42:11food can take up to 16 days

00:42:13to be digested.

00:42:15It's not so difficult to catch one of them.

00:42:17But paradoxically,

00:42:19their slowness helps them.

00:42:21Indeed, as a sloth does not make sudden movements,

00:42:23predators simply do not notice them

00:42:25up there among the leaves.

00:42:27The sloth

00:42:29is one of the slowest marine creatures.

00:42:31But he doesn't care too much

00:42:33that someone bothers them,

00:42:35except maybe humans on motor boats.

00:42:37They are huge and their skin is very thick.

00:42:39A bit like a sea tank,

00:42:41but much cuter.

00:42:43Another relatively slow swimmer

00:42:45is the Greenland shark.

00:42:47He swims at less than 1 km per hour.

00:42:49Like the sloth,

00:42:51he is big enough

00:42:53that no one can challenge him

00:42:55face to face.

00:42:57But this leads to the most hilarious

00:42:59snorkeling technique.

00:43:01The Greenland shark is actually slower

00:43:03than all the fish in the water.

00:43:05The only chance he has

00:43:07is to wait for some of his fish to fall asleep,

00:43:09then it's time to feed him.

00:43:11But what is interesting

00:43:13is that their peaceful way of life

00:43:15actually prolongs their life expectancy.

00:43:17The average life expectancy

00:43:19of a Greenland shark is 300 to 500 years.

00:43:21They live in the North Atlantic

00:43:23and Arctic Oceans.

00:43:25Imagine, you are on a cruise

00:43:27and you see one of these slow giants.

00:43:29He could be 400 years older than you.

00:43:33It's a hot summer day,

00:43:35you are outside, you enjoy the beautiful weather.

00:43:37You want to lie down on the fresh grass

00:43:39in the shade, just to relax.

00:43:41But...

00:43:43It looks like someone has pooped there.

00:43:45But it's actually the house

00:43:47of a Cercopoidea.

00:43:49These little guys suck up

00:43:51a lot of water from the plants

00:43:53and when they treat it,

00:43:55they form many bubbles,

00:43:57no less than 150 times their body mass per day.

00:43:59All these bubbles form a cocoon

00:44:01where the young insects can develop safely.

00:44:03No bird or animal

00:44:05wants to eat this cocoon

00:44:07because it's bitter.

00:44:09A bit like if you were licking a Nintendo cartridge.

00:44:11Not so fast, Mr. Cheetah.

00:44:13Apparently, the Dracula ant

00:44:15is the fastest animal in the world

00:44:17and the vampire of the world of ants.

00:44:19It would probably win any contest

00:44:21of the biggest hamburger eater

00:44:23since it is able to slap its jaws

00:44:255,000 times faster than your eye can blink.

00:44:27To understand the speed of the Dracula ant,

00:44:29you have to watch a video

00:44:31of its jaws that collide

00:44:33at 480,000 beats per second.

00:44:35At this speed,

00:44:37you will see the ant slowly move its jaws.

00:44:39It does not run,

00:44:41but its mouth is fast

00:44:43and it moves its jaws so fast

00:44:45that it bends while colliding.

00:44:47Well, humans can also do it,

00:44:49slapping their fingers so that they bend.

00:44:51The darkest animal that exists

00:44:53is the Ayamsemani hen.

00:44:55Not only does it have feathers,

00:44:57eyes and black claws,

00:44:59but it also has black bones.

00:45:01The color is actually bluish black

00:45:03If you taste the wings of this hen,

00:45:05you will have the impression that someone

00:45:07left them marinated in wall juice

00:45:09or dry ink.

00:45:11It would seem that Marco Polo

00:45:13was the first to discover these strange hens.

00:45:15In 1298, the explorer wrote

00:45:17about a race of hens

00:45:19as black as cats

00:45:21and that lay the best eggs ever.

00:45:23This freshwater fish has been here

00:45:25since the beginning of the 20th century

00:45:27and probably remembers the good old days

00:45:29of black and white films,

00:45:31A large-mouthed buffalo

00:45:33is even 112 years old.

00:45:35It must be said that the oldest creatures

00:45:37in the world all live in the sea.

00:45:39Some high-sea sponges

00:45:41are 11,000 years old

00:45:43and they are still in good health.

00:45:45This fish has incredible branches

00:45:47that allow it to hold its breath

00:45:49for more than 4 minutes.

00:45:51Here is the Serkeui fish,

00:45:53a strange but robust animal.

00:45:55It is also known as a sea toad.

00:45:57In fact, it looks a lot more like a toad

00:45:59than a classic fish

00:46:01with fins and scales.

00:46:03It can also inflate thanks to the seawater

00:46:05it swallows, so that it expands like a balloon.

00:46:07This superpower

00:46:09allows the fish to hold its breath

00:46:11for a few minutes

00:46:13since it actually receives its oxygen

00:46:15from the water it keeps inside.

00:46:17But that's not much compared to humans.

00:46:19The world champion

00:46:21can survive by holding his breath

00:46:23for more than 20 minutes.

00:46:25Some animals make their own clothes.

00:46:27The sponge crab

00:46:29makes a kind of hat

00:46:31from sponges to protect itself

00:46:33from undersea creatures.

00:46:35To know how crabs choose their clothes,

00:46:37researchers have given them

00:46:39foam sponges of different sizes.

00:46:41The bigger the crab is,

00:46:43the bigger sponge it chooses.

00:46:45They use different techniques

00:46:47to get this perfect shape,

00:46:49starting by cutting a small hole for the head,

00:46:51then they see if the size suits them.

00:46:53If it's good, they continue to cut

00:46:55the sponge until it becomes a perfect hat.

00:46:57Recently,

00:46:59researchers found a night butterfly

00:47:01that drank the birds' tears

00:47:03during their sleep.

00:47:05Until now, there have only been 3 recorded cases

00:47:07of animals feeding on the tears

00:47:09of other animals.

00:47:11They were Amazonian butterflies,

00:47:13solitary bees, and night butterflies.

00:47:15Their usual diet

00:47:17mainly includes nectar,

00:47:19but they lack essential salts

00:47:21that are not easy to find elsewhere.

00:47:23They don't only drink birds' tears,

00:47:25but also turtle tears,

00:47:27crocodile tears, and many mammals

00:47:29from the Amazon jungle.

00:47:31Really? Crocodile tears?

00:47:33Some inhabitants of the sea

00:47:35can emit red light.

00:47:37For example, the fish Malacosteus

00:47:39uses it to catch its dinner.

00:47:41Shrimps don't see red light,

00:47:43so this fish can spot any red shrimp

00:47:45by emitting red light pulses

00:47:47and catch it

00:47:49without letting its prey escape.

00:47:51Mammals can also shine.

00:47:53A flying squirrel shines under UV light

00:47:55by emitting pink light.

00:47:57This happens because it is able

00:47:59to absorb light and send it

00:48:01in another wavelength.

00:48:03Ornithorhynchus may not have

00:48:05the largest beaks,

00:48:07but these are certainly the weirdest.

00:48:09They keep gravel inside their beaks

00:48:11to help them crush

00:48:13the food they eat.

00:48:15Green, crustacean, snail.

00:48:17These animals don't have teeth,

00:48:19but the gravel is very useful

00:48:21when it comes to crushing food.

00:48:23It works a bit like a mixer.

00:48:25If humans had the same incredible

00:48:27cheeks as tamillas,

00:48:29we would be able to transport

00:48:31our groceries directly into our mouths.

00:48:33Tamillas can carry something

00:48:35as big as their oversized

00:48:37mouth bags.

00:48:39Hamsters have the same superpowers

00:48:41and can even carry their babies

00:48:43into their mouths

00:48:45in case they need to escape.

00:48:47For a human,

00:48:49but significantly bigger for a hamster,

00:48:51it can disappear without leaving a trace

00:48:53between its huge cheeks.

00:48:55Mariana's sea slug,

00:48:57which lives as its name suggests

00:48:59in the Mariana Trench,

00:49:01is relatively small,

00:49:03equivalent to two chocolate bars.

00:49:05Despite its size,

00:49:07it can easily resist

00:49:09a pressure equivalent

00:49:11to 1,600 elephants stacked on it.

00:49:13It has a unique body structure.

00:49:15If a human was uniform

00:49:17and had no holes,

00:49:19they would never resist

00:49:21the pressure of the Mariana Trench.

00:49:23In addition,

00:49:25its cartilaginous skeleton

00:49:27is flexible and flexible.

00:49:29It does not have a god,

00:49:31but it does not really need one

00:49:33because it lives in the deepest

00:49:35darkness of the world.

00:49:37Here is the Pinocchio frog.

00:49:39Not difficult to guess,

00:49:41its nose can grow in a blink

00:49:43of an eye.

00:49:45When these frogs are calm

00:49:47and feel safe,

00:49:49everything goes back to normal.

00:49:51The nose can also lengthen

00:49:53when it wants to attract partners

00:49:55and probably when it tells a lie.

00:49:57Do you like it when it rains?

00:49:59You probably prepare

00:50:01a cup of hot chocolate,

00:50:03you cover yourself with a blanket

00:50:05and you sit on the edge of the window

00:50:07looking at the drops

00:50:09falling on the tile.

00:50:11Its nostrils are so protruded

00:50:13and exposed to the outside world

00:50:15that it is numb every time it rains.

00:50:17But if you were in the choir

00:50:19of your school,

00:50:21you have a common point.

00:50:23Rhinopithecus love to sing in chorus.

00:50:25The pink dolphins of the Amazon

00:50:27are not born of this color.

00:50:29Their little ones are always gray,

00:50:31but the older they get,

00:50:33the more pink they become.

00:50:35A bit like humans laughing

00:50:37when they get old.

00:50:39Would you rather be a turtle

00:50:41than have wrinkles?

00:50:43You would certainly like to be a termite

00:50:45for their ability to sleep.

00:50:47They never sleep

00:50:49and the only thing they do

00:50:51is nibble the pieces of wood

00:50:53they see around them.

00:50:55If you are afraid of gaining weight

00:50:57because of a cellulose-rich diet,

00:50:59you could probably turn into a snail.

00:51:01They take an energetic nap

00:51:03for a few hours

00:51:05and can then move forward

00:51:07to a place where they can

00:51:09live for a long time without water

00:51:11except for the African deep-nest.

00:51:13When they feel that something is wrong,

00:51:15they start to secrete a mucus cocoon

00:51:17and dive underground,

00:51:19about 23 cm below the surface.

00:51:21It has an integrated tube to breathe.

00:51:23The Vetas of the Rocky Mountains,

00:51:25originating from New Zealand,

00:51:27are not afraid of drastic temperature changes.

00:51:29Their blood contains a special protein

00:51:31that prevents it from crystallizing

00:51:33in the event of extreme temperatures.

00:51:35They tolerate the cold better

00:51:37than polar bears and even leeches

00:51:39who live in the coldest place in the world,

00:51:41Antarctica.

00:51:43The Lemurians makikata

00:51:45have one of the most incredible ways

00:51:47of resolving conflicts.

00:51:49They fight odors.

00:51:51If you take into account the average number

00:51:53of Lemurians in a group,

00:51:55about 20 or 30,

00:51:57you will see that there is a lot of competition.

00:51:59Their odor glands are on their wrists

00:52:01and shoulders.

00:52:03If they are sensitive,

00:52:05the odor they produce is quite volatile.

00:52:07Those on the shoulders

00:52:09are otherwise more vicious

00:52:11and produce a brown paste

00:52:13with a nauseating odor

00:52:15that would last longer

00:52:17than any perfume.

00:52:19Isn't there a beautiful horse

00:52:21over there?

00:52:23But wait,

00:52:25he's sleeping?

00:52:27In reality,

00:52:29the animal you see

00:52:31is a quick movement of the eyes.

00:52:33In humans, this is the stage where we dream.

00:52:35Your arms and legs cannot move

00:52:37during paradoxical sleep.

00:52:39If this were the case,

00:52:41you would start to mimic your dreams

00:52:43and you could accidentally hurt yourself.

00:52:45But let's go back to our horse.

00:52:47Even if he only snores standing up,

00:52:49it's still an impressive feat.

00:52:51You can't do the same.

00:52:53Horses have a tendon and ligament system

00:52:55that helps them stand up easily.

00:52:57The main articulations of the legs are blocked

00:52:59and the animal can relax and sleep

00:53:01without worrying about collapsing on the ground.

00:53:03By the way,

00:53:05the amount of paradoxical sleep

00:53:07horses need is surprisingly low.

00:53:09Usually, it's a series of short breaks,

00:53:11two or three hours a day in total.

00:53:13That's why they don't need to go to bed often.

00:53:15But some animals do it

00:53:17simply because they feel more comfortable

00:53:19that way.

00:53:21Horses take naps when they're standing up

00:53:23because sleep is not safe enough when they're lying down.

00:53:25It's quite difficult for a horse

00:53:27to stand up from the ground

00:53:29and it's a precious waste of time.

00:53:31While a horse is fighting to stand up,

00:53:33a predator could attack the animal

00:53:35and make his dinner out of it.

00:53:37That's why horses only go to bed

00:53:39for short periods.

00:53:41They also have a special surveillance system.

00:53:43One of the animals of the group

00:53:45watches the others while they take a nap.

00:53:47Each member of the herd plays the role

00:53:49of the guard horse.

00:53:51Not only horses, but also zebras,

00:53:53elephants, giraffes, some birds

00:53:55and cows can take a nap while standing up.

00:53:57But why not humans?

00:53:59To be able to do that,

00:54:01your legs should be aligned vertically

00:54:03and your knees should be locked.

00:54:05You wouldn't need a lot of effort

00:54:07to keep yourself in a vertical position.

00:54:09But that's not how your body is built.

00:54:11If you're really exhausted,

00:54:13you could fall asleep standing up.

00:54:15But you'd wake up immediately

00:54:17and that would prevent your body from hitting the ground.

00:54:19Your muscles begin to relax

00:54:21gradually at each step of sleep.

00:54:23And very quickly,

00:54:25after you fall asleep,

00:54:27they won't be able to keep you standing up.

00:54:29Shh! It's a quiet winter night.

00:54:31And the bird perched on the top branch

00:54:33of the tree seems to be sleeping.

00:54:35And there's noise!

00:54:37A human would barely notice it in this calmness.

00:54:39But the owl has perfect hearing.

00:54:41For this creature,

00:54:43it's even more important than a good view.

00:54:45At a glance, the bird moves.

00:54:47Wow! It looks like its head is turned

00:54:49backwards!

00:54:51Owls are so flexible

00:54:53that they can turn their heads in an almost complete circle.

00:54:55These birds have fixed orbits.

00:54:57This means that their eyes don't turn

00:54:59and they must fill this gap in one way or another.

00:55:01The rotation of the head

00:55:03up to 270 degrees is only possible

00:55:05because it is connected to the body

00:55:07in a particular and very smart way.

00:55:09And the tissues and blood vessels

00:55:11where the neck meets the body cannot break.

00:55:13They are designed to be curved.

00:55:15Owls also have many vertebrae.

00:55:17Tiny bones

00:55:19that form the spine and neck.

00:55:21It's another element that helps them

00:55:23to turn their heads.

00:55:25You have a totally different neck structure,

00:55:27but it always meets all your needs.

00:55:29Humans have spherical eyes

00:55:31and can move them freely, unlike owls.

00:55:33You just don't need your neck to turn like that.

00:55:35But yes,

00:55:37it would be a superpower.

00:55:39A goblin shark swims

00:55:41in the depths of the sea

00:55:43when it sees a fish with a succulent look.

00:55:45The shark starts to get closer

00:55:47but the fish notices the hunter

00:55:49and tries to get away.

00:55:51And then, like in a horror movie,

00:55:53the biggest animal takes its jaw out

00:55:55of its mouth and catches the fish.

00:55:57The terrifying jaws of the goblin shark

00:55:59are attached to elastic ligaments.

00:56:01They can be deployed from its muzzle

00:56:03over a distance of up to 8 cm.

00:56:05This allows the animal to catapult

00:56:07its mouth forward to catch

00:56:09an unlucky fish, a squid or other.

00:56:11If only your mouth

00:56:13could do the same.

00:56:15You are then able to nibble on things

00:56:17that hang 15 cm from your face

00:56:19without using your hands to catch them.

00:56:21Goodbye, good manners.

00:56:23You are lying on your bed

00:56:25in a hotel room in a tropical country

00:56:27and you apparently look at a small gecko.

00:56:29It runs on the ground,

00:56:31it reaches the wall,

00:56:33look, it climbs it!

00:56:35And now it is suspended upside down

00:56:37above your head.

00:56:39Geckos can hang on all kinds of surfaces

00:56:41thanks to their bulbous toes.

00:56:43Geckos have hundreds of microscopic hairs

00:56:45and each hair, in turn,

00:56:47is divided into even thinner hairs.

00:56:49This creates such a strong physical bond

00:56:51that hair molecules and surface molecules

00:56:53begin to interact.

00:56:55This creates an electromagnetic attraction.

00:56:57This method allows geckos to stick together

00:56:59and take off their toes and feet

00:57:01at lightning speed.

00:57:03They can launch on different surfaces

00:57:05at a rate of 20 body lengths per second.

00:57:07Unfortunately, this superpower

00:57:09is not available to humans either.

00:57:11The best thing you can do

00:57:13is to laugh after being in the water for a long time.

00:57:15This improves your grip on wet objects

00:57:17by channeling water,

00:57:19just like the traces of rain

00:57:21on the tires of your car.

00:57:23But the problem is that your fingers

00:57:25look like plumes.

00:57:27Each eye of the gecko

00:57:29is as large as the animal's brain.

00:57:31This is a not very subtle sign

00:57:33that vision is crucial for these small animals.

00:57:35Their huge eyeballs do not move.

00:57:37A gecko must turn its entire head

00:57:39so that the animal can see in almost total darkness

00:57:41and hunt insects, lizards,

00:57:43and even small birds at night.

00:57:45The eyes of the gecko

00:57:47gather and reflect the smallest spots of light.

00:57:49This gives the creature a clear picture

00:57:51of what is happening around it.

00:57:53This is why its eyes are the equivalent

00:57:55of the night vision glasses of the animal kingdom.

00:57:57As for us humans,

00:57:59our eyes are designed differently.

00:58:01We only see exceptionally well during the day.

00:58:03In a dark room or outside at night,

00:58:05it is likely that you have trouble

00:58:07seeing shapes or colors.

00:58:09This is because there are two types

00:58:11of organs sensitive to light

00:58:13at the back of your eyes.

00:58:15Some are cone-shaped,

00:58:17others are stick-shaped.

00:58:19Stick-shaped organs have a low light,

00:58:21but they do not allow you to detect colors.

00:58:23Cone-shaped organs allow you to see

00:58:25finer details and brighter hues,

00:58:27but they do not work when the lighting is low.

00:58:29Thus, once it gets dark,

00:58:31only stick-shaped organs continue

00:58:33to react to the available light.

00:58:35You can only see shades of black,

00:58:37gray and white.

00:58:39You are sitting on the edge of a river

00:58:41and you look at the water flowing

00:58:43as a lizard moves at full speed.

00:58:45Yes, right on the water!

00:58:47It is the basilisk lizard.

00:58:49It has long special toes on its hind legs

00:58:51with skin stripes that stretch

00:58:53when the animal is moving.

00:58:55This increases the contact surface with the water.

00:58:57The lizard is also helped by the fact

00:58:59that it moves its legs incredibly fast.

00:59:01It hits hard against the surface,

00:59:03its pockets hold the lizard above the water,

00:59:05but only as long as it does not slow down.

00:59:07Even if a human had special shoes

00:59:09in the shape of a basilisk lizard's feet,

00:59:11it would still have to run at a speed

00:59:13of 105 km per hour to stay afloat.

00:59:15If you find yourself in the jungles

00:59:17of South and Southeast Asia,

00:59:19beware of snakes!

00:59:21Why are you looking at the ground?

00:59:23We are talking about flying snakes!

00:59:25Flying snakes remind creatures

00:59:27of your worst nightmares,

00:59:29but they really exist!

00:59:31These reptiles are gliders.

00:59:33They use the speed of free fall

00:59:35to catch air currents.

00:59:37Once they do, it is not a problem

00:59:39for them to generate ascent.

00:59:41At first glance, you could not distinguish

00:59:43a flying snake from a normal snake.

00:59:45It has a tube-shaped body

00:59:47and has no limbs.

00:59:49But then the creature begins

00:59:51to prepare for takeoff.

00:59:53It slides to the end of a branch

00:59:55and swings, creating a J-shape with its body.

00:59:57Once the snake propels down,

00:59:59it becomes flatter than usual.

01:00:01Its round body curves inward

01:00:03and traps air.

01:00:05The reptile can even loop

01:00:07by moving from top to bottom,

01:00:09like waves on the sea.

01:00:11The coolest thing is that flying snakes

01:00:13are even better gliders

01:00:15than flying squirrels,

01:00:17yet much more famous.

01:00:19Psst! Run! Really!

01:00:21It's not safe outside!

01:00:23There is a tiger with a saber

01:00:25that roars! You should be careful!

01:00:27Just take a look!

01:00:29How is it possible, you ask?

01:00:31It's because you are in virtual reality, of course!

01:00:33These big felines with a nice

01:00:35but very dangerous look

01:00:37lived during the last glacial period

01:00:39and if they decided to appear

01:00:41on the bottom of your door,

01:00:43as if by chance,

01:00:45a saber-toothed cat

01:00:47was waiting for you to buy them cookies!

01:00:49The Coelacanth,

01:00:51this fish with an imposing appearance,

01:00:53is from a line that has existed

01:00:55for thousands of years.

01:00:57We thought it no longer existed

01:00:59until 1938,

01:01:01when a living Coelacanth

01:01:03was found.

01:01:05Since then, they have been

01:01:07in the waters of the east coast of Africa

01:01:09and in the waters of Sulawesi,

01:01:11in Indonesia.

01:01:13Dude, I don't want to go swimming

01:01:15and meet one of these guys face to face!

01:01:17Their jaws have an intracranial articulation,

01:01:19which means that their mouths

01:01:21open a lot.

01:01:23They are huge too!

01:01:25Imagine a fish that is as long as you

01:01:27and that weighs as much as an ordinary human!

01:01:31We thought that the Takahē,

01:01:33an incapable bird of prey,

01:01:35had disappeared in 1898.

01:01:37They are very beautiful, small

01:01:39and multicolored.

01:01:41Usually not higher than your knee.

01:01:43But imagine that!

01:01:45You are hiking in the Murchison Mountains,

01:01:47you look around you

01:01:49and you see the bird you thought was gone.

01:01:51But they are there, happier than ever,

01:01:53surviving and refreshing.

01:01:55An entire colony of Takahē

01:01:57was indeed found

01:01:59only 50 years after they were

01:02:01declared extinct.

01:02:03Good job, little birds!

01:02:05A singing dog?

01:02:07Have you ever heard of it?

01:02:09Railesh sometimes sings when he is bored

01:02:11or when he is hungry,

01:02:13but these are real artists,

01:02:15the singing dogs of New Guinea.

01:02:17They were recently discovered in the wild

01:02:1950 years ago.

01:02:21However, they were never completely extinct at first.

01:02:23The New Guineans

01:02:25made sure they were safe

01:02:27next to them.

01:02:29But in the wild,

01:02:31it is very rare and difficult to see.

01:02:33Look, here is one!

01:02:35The singing dogs of New Guinea

01:02:37are called that because of their famous high singing.

01:02:39They also sometimes sing together,

01:02:41a kind of dog choir

01:02:43where they all scream together.

01:02:45I bet they sing better than me in the shower!

01:02:47Not far from here,

01:02:49we have bats.

01:02:51But these are a little different.

01:02:53You see, their ears are huge.

01:02:55I guess that's why they are called

01:02:57the big-eared bats of New Guinea.

01:02:59Clever!

01:03:01The species was found when one of them

01:03:03was accidentally trapped in a bat trap.

01:03:05Until then,

01:03:07I guess they were playing hide-and-seek with us

01:03:09because until 1890,

01:03:11they were thought to have disappeared.

01:03:13They are still not out of the danger zone

01:03:15because of the loss of habitat.

01:03:19Imagine that you discover a fossil

01:03:21of a species that you thought was extinct

01:03:23for a long time,

01:03:25and that two years later,

01:03:27you find an entire group of this species alive.

01:03:29That's exactly what happened

01:03:31in 1977

01:03:33with the New York bat.

01:03:35It is brown

01:03:37with darker spots on its skin.

01:03:39Apart from that,

01:03:41it's just a little bat

01:03:43The group of living bats

01:03:45was found near the place

01:03:47where the fossil was found,

01:03:49on the island of New York.

01:03:51There are not many left,

01:03:53about 500 in fact,

01:03:55and at present,

01:03:57they are declared vulnerable

01:03:59by the International Union

01:04:01for Conservation of Nature.

01:04:03Are you a fan of turtles?

01:04:05You'll know when you take a look

01:04:07at this huge beauty.

01:04:09It's called the Galapagos turtle

01:04:11and has been around since 1906.

01:04:13But on February 17, 2019,

01:04:15we were finally able to look at

01:04:17one of these magnificent creatures.

01:04:19It is probably outside

01:04:21with some of its companions at the moment,

01:04:23but it doesn't let itself be seen either.

01:04:25We only know that they exist

01:04:27because there are some traces and smells.

01:04:31Here is another frog,

01:04:33the horned marsupial frog.

01:04:35It is found in Ecuador

01:04:37in the Choco forest,

01:04:39and it is called so

01:04:41because of their distinct horns

01:04:43just above their eyes.

01:04:45Do you know the pocket

01:04:47that kangaroos use

01:04:49to carry their offspring?

01:04:51Well, the female horned marsupial frog

01:04:53also has one,

01:04:55except that it is on its back

01:04:57and acts like a kind of backpack.

01:04:59They develop their embryos

01:05:01at this place,

01:05:03and when they are ready to go out,

01:05:05they hatch like complete babies,

01:05:08Another toad,

01:05:10the starry night toad

01:05:12or harlequin toad.

01:05:14They are black and covered

01:05:16with a multitude of white spots.

01:05:18Lost for 30 years,

01:05:20it was discovered in 2019.

01:05:22Imagine them as bodyguards,

01:05:24bodyguards of water,

01:05:26to be exact.

01:05:28Oh, it's a very big toad on your screen!

01:05:30Well, for the Arhuaco people,

01:05:32that's exactly what they are,

01:05:34bodyguards of water.

01:05:36Let's call them Gouna.

01:05:38It looks like a cheese.

01:05:40When the scientists found them,

01:05:42they met 30 of these little creatures,

01:05:44while they were waiting

01:05:46for only one at the start.

01:05:48What a nice surprise!

01:05:52Here is a tiger for you,

01:05:54although it does not look

01:05:56like a classic tiger.

01:05:58This is the Tasmanian tiger

01:06:00which seems to have disappeared

01:06:02since 1936.

01:06:04Scientists began to perceive it

01:06:06in the wild just 5 years ago,

01:06:08in 2016.

01:06:10It looks like a dog

01:06:12more than a tiger

01:06:14or a fox, maybe.

01:06:16Just look at its muzzle.

01:06:18Maybe even a mix of the two.

01:06:20Then some others

01:06:22started to appear too.

01:06:24And if you think you see

01:06:26one right in front of you,

01:06:28but you're not sure,

01:06:30check if it has stripes on its back.

01:06:32OK, imagine a horse

01:06:34that looks like it just came out

01:06:36of a movie scene.

01:06:38Very small,

01:06:40a magnificent fur,

01:06:42very well raised.

01:06:44It is small, but it is not a pony.

01:06:46It is a Caspian horse.

01:06:48They have an interesting story.

01:06:50They were discovered by Louise Leylin,

01:06:52who married an aristocrat

01:06:54in 1957.

01:06:56Having moved to Tehran,

01:06:58in Iran, she did not like

01:07:00the horses there.

01:07:02So she took things in her hands.

01:07:04She took a few people with her

01:07:06and they went to the mountains

01:07:08of the Caspian Sea.

01:07:10And there they found

01:07:12three of these magnificent little horses.

01:07:14That's how the story happened.

01:07:16Then,

01:07:18an opossum was found

01:07:20in an unexpected place.

01:07:22Guess where?

01:07:24You have three possible options.

01:07:26Hidden in a ski resort,

01:07:28or in the bathroom of an apartment.

01:07:30Which one do you choose?

01:07:32You have three seconds.

01:07:36The right answer is

01:07:38a ski resort.

01:07:40Yes,

01:07:42this opossum was called

01:07:44the Nile Opossum of the Mountains.

01:07:46And it is native to Australia.

01:07:48Until now,

01:07:50there are three different populations

01:07:52of this little opossum.

01:07:54But it was believed to be extinct until 1966.

01:07:56There are less than 100 of them,

01:07:58and the UCN considers them

01:08:00to be in critical danger of extinction.

01:08:04Also native to Australia,

01:08:06the nocturnal opossum.

01:08:08An absolute pleasure for birdwatchers.

01:08:10Very beautiful and mysterious,

01:08:12these little men live

01:08:14in very remote regions.

01:08:16You can probably count on your fingers

01:08:18the number of times these birds have been seen

01:08:20since they were found in 1979.

01:08:22It shows how rare they are.

01:08:26Have you ever seen

01:08:28a pygmy tarantula?

01:08:30Me neither.

01:08:32It was only in 2008

01:08:34that three of them were captured.

01:08:36Scientists don't want to lose

01:08:38the trace of their movements again,

01:08:40so they gave them very small necklaces.

01:08:42This way, they can live their lives

01:08:44as happily as ever,

01:08:46and we will know that they are safe.

01:08:48The last one I want to talk to you about

01:08:50is the tree lobster.

01:08:52But as its name could make you think wrong,

01:08:54they are not really lobsters.

01:08:56They are just big black creatures

01:08:58with huge legs.

01:09:00The story of their extinction is sad.

01:09:02In 1920,

01:09:04a cargo ship got stuck

01:09:06on Lord Howe Island

01:09:08and there were rats on board.

01:09:10These rats fled the ship

01:09:12and ran straight to the mainland.

01:09:14Even though tree lobsters

01:09:16are bigger than most insects,

01:09:18they are still relatively small compared to rats.

01:09:20The poor had no chance.

01:09:22However, in 2004,

01:09:24life resumed

01:09:26for these distinctive creatures.

01:09:28Two Australian scientists

01:09:30who were walking on the island

01:09:32found 24 of them.

01:09:34All of them lived under one bush.

01:09:36Hey, if there is enough space for everyone,

01:09:38it's not small,

01:09:40it's big.

01:09:42Conclusion,

01:09:44it's better to be different than extinct,

01:09:46isn't it?

01:09:48The squirrel's teeth keep growing,

01:09:50and some animals use them

01:09:52to chew nuts and other hard food.

01:09:54The front of the teeth of the squirrel

01:09:56is actually orange.

01:09:58It's because they are covered

01:10:00with a special and resistant enamel.

01:10:02I bet you're glad

01:10:04you don't have to deal with that.

01:10:06Some species of birds

01:10:08are not afraid of biting strong peppers.

01:10:10It's because they can't feel the spice.

01:10:12Peppers burn your mouth

01:10:14because they contain a special chemical

01:10:16called capsaicin.

01:10:18The rhinoceros horn

01:10:20is made of hair,

01:10:22or at least the same protein

01:10:24as the one that makes your hair

01:10:26and nails.

01:10:28This protein is called keratin.

01:10:30Such a horn is quite unique

01:10:32because other animals have horns

01:10:34with a bone center.

01:10:36The squirrel can bite wood

01:10:3820 times per second.

01:10:40This rate is almost too high

01:10:42for the human eye to notice it.

01:10:44How much wood would a squirrel bite

01:10:46in a day?

01:10:48The starfish has eyes.

01:10:50One at the end of each of its arms.

01:10:52Its eyes are groups

01:10:54of light-sensitive cells.

01:10:56Squirrels don't need

01:10:58to drink water.

01:11:00It's their skin that allows them

01:11:02to hydrate by absorbing water

01:11:04while providing the oxygen

01:11:06they need to breathe.

01:11:08This could save time.

01:11:10Most squirrel species

01:11:12have about 4,000 muscles in their body

01:11:14and are in the head alone.

01:11:16Christmas tree branches

01:11:18are much more beautiful

01:11:20than you can imagine.

01:11:22But even if these little trees

01:11:24look great,

01:11:26two-thirds of the body

01:11:28is hidden in a tube

01:11:30of calcium carbonate.

01:11:32What's the point?

01:11:34Well, I don't know.

01:11:36The famous rhino's teeth

01:11:38are actually their teeth

01:11:40that are somehow twisted.

01:11:42Unlike your teeth,

01:11:44this one is hard on the inside

01:11:46and sensitive and tender on the outside.

01:11:48The ant doesn't have teeth,

01:11:50but that's not a problem.

01:11:52This creature has a super long tongue.

01:11:54This tongue allows the animal

01:11:56to lick more than 35,000 termites

01:11:58and ants a day.

01:12:00It's one way or another

01:12:02to appease hunger.

01:12:04The chip can jump

01:12:06more than 200 times

01:12:08the length of its body.

01:12:10It's breeding!

01:12:12The eggs of the red-eyed rhino

01:12:14can hatch earlier

01:12:16if it feels that its environment

01:12:18is not safe.

01:12:20Small animals with rapid metabolism

01:12:22see in slow motion.

01:12:24This helps them escape

01:12:26larger creatures.

01:12:28Koalas' fingerprints

01:12:30are very, very similar

01:12:32to humans'.

01:12:34Sometimes the fingerprints

01:12:36of these animals

01:12:38are pink.

01:12:40It's not really sweat,

01:12:42it's a reddish oil.

01:12:44Its function is not to cool the body,

01:12:46but to hydrate the skin

01:12:48and protect it.

01:12:50This fluid also works

01:12:52like an antibiotic.

01:12:54So if you have a sunburn

01:12:56or a cut,

01:12:58you can get hypopotamia.

01:13:00The skin of polar bears is black

01:13:02and the fur of their furs

01:13:04is hollow and almost transparent.

01:13:06This gives a better grip on the ice

01:13:08and protects them from the cold.

01:13:10Some species of tarantula,

01:13:12among the largest spiders in the world,

01:13:14can live without food

01:13:16for more than two years.

01:13:18I always find them scary!

01:13:20Ornithorhynchus close their eyes

01:13:22when they kiss, I mean when they swim.

01:13:24They have special skin folds

01:13:26that cover their ears and eyes.

01:13:28They prevent water from entering inside.

01:13:30The nostrils of these animals

01:13:32are also waterproof.

01:13:34They can't walk backwards,

01:13:36but scientists don't know why.

01:13:38These birds that don't fly

01:13:40are the only ones to have

01:13:42soft muscles.

01:13:44Emo can sprint very fast.

01:13:46They can also walk long distances,

01:13:48but they can't walk backwards.

01:13:50Crocodiles can't move their tongue

01:13:52because it's attached to the palate

01:13:54of their mouth.

01:13:56It keeps the throat closed

01:13:58and protects the animal's respiratory tract.

01:14:00Water snakes, dolphins, whales, alligators,

01:14:02can drown.

01:14:04It happens if they stay in the water

01:14:06for too long.

01:14:08These animals can't breathe in the water.

01:14:10They can only hold their breath

01:14:12for a very long time.

01:14:14Only one species of bird can fly backwards.

01:14:16It's the hummingbirds.

01:14:18These little birds can also

01:14:20flap their wings up to 80 times per second.

01:14:22Despite the appearance of truncated muses,

01:14:24these little animals are more closely

01:14:26related to elephants than to muses.

01:14:28Maybe that's why they have

01:14:30such a nasal appendix.

01:14:32Muses and elephants

01:14:34use it to nibble on insects.

01:14:36Cats and other felines

01:14:38can't taste sweet foods.

01:14:40They don't have the necessary

01:14:42taste buds for that.

01:14:44Too bad, it makes more for me.

01:14:46Pink flames can only eat

01:14:48with their head down.

01:14:50That's why the lower part of their beak

01:14:52is massive, while the upper part

01:14:54is mobile.

01:14:56Such a device is perfect

01:14:58but it's the opposite of what

01:15:00other birds have.

01:15:02It's not easy to be pink.

01:15:04The tiger's skin is as striped as their fur.

01:15:06That's all I have to say about that.

01:15:08When the toucans sleep,

01:15:10they curl up

01:15:12into pretty tight balls.

01:15:14These birds turn their heads

01:15:16so that their tails cover their heads

01:15:18and the beak rests on their backs.

01:15:20So, yes, they curl up.

01:15:22The ostrich has the largest eyes

01:15:24in the animal kingdom.

01:15:26Each eye is as big as a billiard ball.

01:15:28All clown fish

01:15:30are born male.

01:15:32But in some circumstances,

01:15:34they can turn into females.

01:15:36This change is irreversible.

01:15:38Unlike most fish,

01:15:40when hippos mate,

01:15:42they do it for life.

01:15:44Even cuter, when partners travel,

01:15:46they move side by side

01:15:48and often hang on to each other's tails.

01:15:50Males usually end up

01:15:52carrying luggage.

01:15:54They don't need to recharge their batteries.

01:15:56But they can eat 24 hours a day,

01:15:587 days a week.

01:16:00And they eat at home.

01:16:02The lazy one needs up to 2 weeks

01:16:04to digest his food.

01:16:06Hey, take your time.

01:16:08No rush.

01:16:10There's nothing on the schedule.

01:16:12Dog's nasal marks

01:16:14can be used to identify them.

01:16:16They're similar to human fingerprints

01:16:18and unique to each animal.

01:16:20Hippos don't have eyeballs.

01:16:22They don't move in their orbits.

01:16:24Penguins don't have external ears.

01:16:26But their oar is exceptionally thin,

01:16:28especially when they're

01:16:30in the presence of polar bears.

01:16:32Jellyfish are 98% water-based.

01:16:34That's why when they're thrown

01:16:36onto the shore,

01:16:38their bodies can evaporate

01:16:40in the air after just a few hours.

01:16:42If a bottle-up occurs underwater,

01:16:44an alligator will always find

01:16:46a place for a sloth.

01:16:48Here's a good example.

01:16:50Jellyfish have such a powerful bite

01:16:52that they can crush a bowling ball.

01:16:54So it's better to let them win.

01:16:56Giant pandas

01:16:58aren't complicated

01:17:00when it comes to where they sleep.

01:17:02They usually sleep where they are.

01:17:04In most cases,

01:17:06on the forest floor.

01:17:08Giant panda newborns are tiny.

01:17:10They weigh as much as a small cup of coffee

01:17:12and are smaller than a mouse.

01:17:14The red-handed fish

01:17:16can walk on the bottom of the ocean

01:17:18with their paws.

01:17:20But of course,

01:17:22they're not really hands,

01:17:24but evolved fins.

01:17:26Cats aren't used to petting each other.

01:17:28A study has shown that felines

01:17:30use this mode of communication

01:17:32to attract our attention,

01:17:34us humans.

01:17:36And it works!

01:17:38Sloths can't whine.

01:17:40It's not because they're too busy

01:17:42digesting their two-week-old meal.

01:17:44Their fur is sometimes covered in algae.

01:17:46The metabolism stops.

01:17:48During difficult periods,

01:17:50the immortal jellyfish

01:17:52transform to get back to their prime youth.

01:17:54Once they reach the stage

01:17:56where they're just a pile of soft tissue,

01:17:58a bit like me,

01:18:00these creatures begin to grow.

01:18:02And this process can apparently

01:18:04repeat itself over and over again.

01:18:06The closest relatives of the T-Rex

01:18:08are chickens and ostriches.

01:18:10Don't turn around!

01:18:12The mureen has another series of jaws

01:18:14First, the main jaws

01:18:16close around an unlucky marine creature.

01:18:18Then, the additional jaw

01:18:20grabs the future meal of the eel

01:18:22with its teeth pointing back

01:18:24and sharp as razors.

01:18:26And after that,

01:18:28the captured animal is brought back

01:18:30to the mureen's jaw.

01:18:32And I just lost my appetite.

01:18:34Some species of snails have a hairy shell.

01:18:36Thanks to these hairs,

01:18:38snails can better adhere to wet surfaces.

01:18:40When humpback whales hunt,

01:18:42they often gather in groups

01:18:44and use a net-to-bubble tactic

01:18:46to catch their food.

01:18:48Bubbles don't let the fish escape.

01:18:50Snow leopards

01:18:52can't roar like other big felines.

01:18:54This is due to their

01:18:56less developed vocal cords.

01:18:58But these animals can meow,

01:19:00growl, whistle and even purr.

01:19:02To stay away from their group

01:19:04during nap time,

01:19:06sea otters hold each other by the hand.

01:19:08They can also fight

01:19:10in giant algae in the same bunch.

01:19:12Lions are often called

01:19:14the kings of the savannah.

01:19:16And I thought it was the king of the jungle.

01:19:18And yet, up to 90% of the hunt

01:19:20in the troop is carried out by females.

01:19:22Males are in charge

01:19:24of protecting the territory

01:19:26and the troop members.

01:19:28And they make a delicious potato salad

01:19:30known as

01:19:32Hakuna Patata.

01:19:34Cats are famous for their amazing ability

01:19:36to move their ears.

01:19:38This is because cats have 32 muscles

01:19:40in each external ear.

01:19:42Some species of sharks can shine in the dark.

01:19:44Unfortunately, only other sharks

01:19:46can see this greenish glow.

01:19:48You have up to 8,000

01:19:50gustative grandpas,

01:19:52but your dog only has a little over 1,500.

01:19:54The blue jay can imitate other birds.

01:19:56His favorite is the hawk's cry.

01:19:58The blue jay uses it

01:20:00to make other birds flee its territory.

01:20:02The slow lorries

01:20:04are incredibly cute and just as perfidious.

01:20:06They are the only venomous primates known.

01:20:08They have a gland located in the hollow of their arms.

01:20:10They secrete toxins

01:20:12that can have very unpleasant consequences

01:20:14in humans.

01:20:16The blue jay has an amazing escape tactic.

01:20:18To escape other animals,

01:20:20it moves in a zigzag.

01:20:22Dolphins have names for their congeners.

01:20:24These are specific whistles.

01:20:26Hey Bob! Hey Charlie!

01:20:28Hey Donny!

01:20:30Hi guys, and thanks for the fish!

01:20:32Giraffes have a long black tongue.

01:20:34Scientists suppose that this color

01:20:36could protect the tongue from sunburns.

01:20:38Well, that's all I have for today.

01:20:40See you soon!

01:21:04Corals do not.

01:21:06They are made up of thousands of polyps,

01:21:08which are tiny coral creatures.

01:21:10They have small tentacle-shaped arms

01:21:12that they use to catch food

01:21:14and throw it into their mouths.

01:21:16They look innocent and harmless,

01:21:18like a marine flower

01:21:20that stays there doing nothing.

01:21:22This is probably what jellyfish think

01:21:24when they float near them,

01:21:26hiding from the biggest predators.

01:21:28But when they least expect it,

01:21:30the coral catches one.

01:21:32Scientists were surprised

01:21:34by the power of corals.

01:21:36Catching a bigger moving animal

01:21:38while it is still

01:21:40requires a lot of teamwork.

01:21:42Some polyps catch jellyfish's bell

01:21:44with tentacles,

01:21:46while others quickly attack

01:21:48the arms that feed it.

01:21:50And the poor creature

01:21:52has no chance of escaping.

01:21:54As they are distant cousins,

01:21:56scientists think that corals

01:21:58are immune to jellyfish's venom.

01:22:00They look like insects,

01:22:02but scientists have realized

01:22:04that they are closely related to scorpions.

01:22:06They feed on liquid food,

01:22:08have a strong sense of smell

01:22:10that they use to find food,

01:22:12and have eight legs.

01:22:14Scorpions are better at surviving

01:22:16in difficult conditions.

01:22:18They can spend a whole year

01:22:20without eating.

01:22:22But when they eat,

01:22:24that is, every two weeks,

01:22:26they attack not only small animals

01:22:28but mice and lizards.

01:22:30They seem to have been there

01:22:32for over 400 million years,

01:22:34long before dinosaurs arrived.

01:22:36Scientists think

01:22:38they could be among the first animals

01:22:40to go from water to earth.

01:22:42We found the fossilized claw

01:22:44of a 46 cm long sea scorpion,

01:22:46which implies that the beast

01:22:48was about 2.5 meters long.

01:22:50Moreover,

01:22:52after finding the claw,

01:22:54scientists realized that crabs,

01:22:56scorpions, and giant spiders

01:22:58were much larger than we thought.

01:23:00Suricates and lizards.

01:23:02They look like cats,

01:23:04and yet neither of them

01:23:06has any kinship with these felines.

01:23:08But they have a fairly long and agile body,

01:23:10which makes them distant cousins

01:23:12of squirrels and mongooses.

01:23:14They raise both their young

01:23:16in underground dens,

01:23:18but the suricates like teamwork.

01:23:20They do most things together,

01:23:22including taking care of the young

01:23:24Lizards are rather introverts,

01:23:26who don't like group meetings.

01:23:28At birth, they have complete fur,

01:23:30can move,

01:23:32and are practically ready to discover the world.

01:23:34Suricates, at the first stage of their life,

01:23:36do not have very developed senses,

01:23:38and need a little more time to mature.

01:23:40When they reach adulthood,

01:23:42they are rather resistant.

01:23:44They are strong enough to survive

01:23:46the venom of snakes,

01:23:48have their own method to catch scorpions,

01:23:50have excellent vision,

01:23:52and can live without water.

01:23:54They only draw their liquid from what they eat.

01:23:56Lizards are nocturnal,

01:23:58while suricates enjoy a good night's sleep,

01:24:00and are active during the day.

01:24:02Humans and kangaroos

01:24:04We are somehow separated

01:24:06about 150 million years ago,

01:24:08but we still have a common lineage,

01:24:10and as scientists discovered a few years ago,

01:24:12a genome almost identical.

01:24:14This could give us more answers

01:24:16about what we were at the time.

01:24:18Although the right hand is dominant

01:24:20in most humans,

01:24:22some of us are left-handed.

01:24:24However, it is the same for kangaroos.

01:24:26After starting to walk on two legs,

01:24:28they had two free hands

01:24:30to do other tasks.

01:24:32It is then that a side

01:24:34has naturally become dominant.

01:24:36As for the tail, kangaroos,

01:24:38like most mammals,

01:24:40have one for a better balance,

01:24:42especially when they run.

01:24:44In our evolutionary tree,

01:24:46the tail has disappeared.

01:24:48We don't have one either.

01:24:50Four-legged animals need a lot of energy

01:24:52for every step they take,

01:24:54while we can walk on two legs

01:24:56more easily thanks to gravity.

01:24:58Every time we take a step,

01:25:00it somehow pulls us forward.

01:25:02Thus, we use 25% less energy

01:25:04than if we walked on four legs,

01:25:06so that today,

01:25:08we no longer need a tail to balance.

01:25:10Ants and bees

01:25:12If there was a family reunion,

01:25:14bees would not invite geese.

01:25:16Scientists have long thought

01:25:18that ants were the closest

01:25:20relatives of geese.

01:25:22It turns out that they are only linked

01:25:24to certain species,

01:25:26such as burrowing geese,

01:25:28and more likely to bees.

01:25:30Ants and bees both have

01:25:32specific eyes made up

01:25:34of tiny facets and antennas.

01:25:36They are both social creatures,

01:25:38live in larger groups,

01:25:40are hard-working

01:25:42and appreciate teamwork.

01:25:44They are also very responsible.

01:25:46Ants clean the environment,

01:25:48remove the leaves,

01:25:50the remains of food,

01:25:52the remains of insects,

01:25:54eat harmful insects,

01:25:56and dig tunnels that help

01:25:58the plants to grow better

01:26:00because more air then reaches the ground.

01:26:02Bees make honey and pollinate flowers,

01:26:04which partly explains

01:26:06why nature is so diverse.

01:26:08Birds and dinosaurs

01:26:10Birds come from a group of carnivores

01:26:12known as pteropods.

01:26:14The fossils of ancient birds

01:26:16date from 150 million years ago.

01:26:18They looked like small dinosaurs

01:26:20with feathers and pointed teeth.

01:26:22But many dinosaurs also had feathers

01:26:24and not just those that could fly.

01:26:26Young T-Rexes came out of the egg

01:26:28in the form of soft and fluffy balls

01:26:30like the swallows.

01:26:32Feathers were useful to keep them warm

01:26:34and protect them.

01:26:36The velociraptor was also covered in feathers

01:26:38and had handles and articulated ankles

01:26:40as well as three toes.

01:26:42Some dinosaurs also had hollow bones.

01:26:44Some sat on the eggs to keep them warm

01:26:46while others slept with their heads

01:26:48under their arms with their limbs

01:26:50folded like birds.

01:26:52And their claws were also similar.

01:26:54Whales and cows

01:26:56A very long time ago,

01:26:58about 50 million years ago,

01:27:00a small animal walked on the rivers

01:27:02of southern Asia.

01:27:04It had soles and fine paws.

01:27:06The creature fed on the ground,

01:27:08it felt a danger coming,

01:27:10it jumped into the water to be safe.

01:27:12This animal, called Indoïus,

01:27:14was the oldest parent

01:27:16of what we know today

01:27:18under the name of whale and dolphin.

01:27:20Once this unusual creature

01:27:22arrived in the water,

01:27:24the way it evolved into a whale

01:27:26became clearer.

01:27:28Its cousins who stayed on the mainland

01:27:30took a different direction.

01:27:32They are what we know today

01:27:34as sabre mammals,

01:27:36pigs, giraffes,

01:27:38camels, deer,

01:27:40and even hippos.

01:27:42Limuls and spiders

01:27:44Limuls have a shell

01:27:46similar to that of crabs

01:27:48and spend most of their time

01:27:50crawling at the bottom of the sea.

01:27:52But despite this behavior,

01:27:54they are more like spiders

01:27:56than crabs they probably hang out with.

01:27:58Limuls have ten eyes on the sides

01:28:00and the back, blue blood,

01:28:02and can replace some parts of their body.

01:28:04They can walk with articulated legs

01:28:06just like spiders.

01:28:08They have been on the mainland

01:28:10for 500 million years

01:28:12and their prehistoric ancestors

01:28:14could measure up to 60 cm.

01:28:16They had fairly long tails

01:28:18that they used as a tool

01:28:20to dig when they needed to find food.

01:28:22With their tails,

01:28:24they could even stand up

01:28:26when they were upside down.

01:28:28Fortunately for us,

01:28:30they never evolved enough

01:28:32Here is an interesting trio

01:28:34tapirs, horses,

01:28:36and rhinoceros.

01:28:38Although tapirs look more like

01:28:40adorable pigs with trunks,

01:28:42they are not related to them

01:28:44or to elephants.

01:28:46Rhinoceros are native to North America

01:28:48and the first did not look like

01:28:50the big thick-skinned pebbles

01:28:52we know today.

01:28:54They were endangered mammals

01:28:56of the family of imponens.

01:28:58Some of the first horses

01:29:00were small dogs with shoes.

01:29:02The first tapirs were small too.

01:29:04Scientists have also discovered

01:29:06a small mammal with shoes

01:29:08whose scientific name is Cambytherium.

01:29:10It lived in India,

01:29:12which was an island at the time,

01:29:14more than 50 million years ago.

01:29:16The bones of its lower jaw were welded

01:29:18and the creature was herbivorous

01:29:20just like horses and rhinoceros.

01:29:22It was not their ancestor,

01:29:24but it helped scientists

01:29:26to understand how these three

01:29:28animals were related.

01:29:30Elephants and mammoths.

01:29:32Sea cows used to walk on land

01:29:34and the proof is that scientists

01:29:36have discovered an interesting animal,

01:29:38the Bézosirene,

01:29:40from the primitive genealogical tree

01:29:42of the sea cow.

01:29:44It lived in prehistoric Jamaica

01:29:46and died 40 million years ago.

01:29:48The current mammoth weighs

01:29:50the weight of a standard piano

01:29:52and can be found in rivers

01:29:54and shallow coastal waters

01:29:56The elephant weighs as much as a school bus

01:29:58and lives in tropical regions

01:30:00of Asia and Africa.

01:30:02These two have taken different paths,

01:30:04but to know this creature

01:30:06looks unusual,

01:30:08we can guess the link between them.

01:30:10Are you looking for something viscous?

01:30:12Many people tend to believe

01:30:14that snails are only limas with a shell.

01:30:16But even if they look a lot alike,

01:30:18they are completely different species.

01:30:20Limas do not need

01:30:22protective shells

01:30:24because their internal organs are,

01:30:26well, internal,

01:30:28that is, located inside their viscous body.

01:30:30They can compress

01:30:32and enter difficult places.

01:30:34This is why we often find

01:30:36limas in the most improbable places,

01:30:38such as under the bark of trees

01:30:40or in tiny little holes,

01:30:42or at the library pretending

01:30:44to study for exams.

01:30:46But snails, on the other hand,

01:30:48are very dependent on their shell

01:30:50and cannot survive without it.

01:30:52In fact, it is the hermits who renew

01:30:54their shells as they grow up.

01:30:56Snails are born with a shell on their back.

01:30:58Baby snails are also adorable

01:31:00with their fragile translucent bubbles

01:31:02which calcify

01:31:04and become larger and more resistant

01:31:06with age.

01:31:08Many internal organs of snails

01:31:10are also located inside the shell,

01:31:12which means that if it is crushed

01:31:14or damaged,

01:31:16the animal will probably not survive.

01:31:18However, a snail can repair

01:31:20the shape of its shell

01:31:22using proteins and calcium

01:31:24secreted by its mantle.

01:31:26Turtles are very close to snails

01:31:28in this regard,

01:31:30because unlike common myths,

01:31:32they cannot leave their shell

01:31:34on a whim.

01:31:36The shell of a turtle is an integral part

01:31:38of its body and even if the reptile

01:31:40can hide its head and legs inside

01:31:42to protect itself from predators,

01:31:44its skeleton is fused with the hard shell.

01:31:46And like the skeleton of any other animal,

01:31:48it grows with the turtle itself.

01:31:50Koalas only eat eucalyptus leaves,

01:31:52but there are more than 600

01:31:54different varieties

01:31:56and koalas only eat 30,

01:31:58that is only 5% of what is

01:32:00available on the menu.

01:32:02So it must be a very specific eucalyptus

01:32:04for a difficult koala to accommodate.

01:32:06These adorable creatures

01:32:08also have something in common

01:32:10with cats, they sleep 18 to 20 hours a day.

01:32:12Polar bears are not white,

01:32:14their skin is black

01:32:16under their fur,

01:32:18but they need the white color

01:32:20to camouflage themselves while hunting.

01:32:22The black color absorbs the sun better

01:32:24than any other, while the white fur

01:32:26does not stop the sunlight,

01:32:28the rays cross it.

01:32:30In a way, a polar bear

01:32:32has rather a transparent fur.

01:32:34There is a myth according to which

01:32:36cats and dogs see the world

01:32:38in black and white.

01:32:40In reality, they simply cannot

01:32:42distinguish certain colors.

01:32:44Some think they only

01:32:46distinguish two colors,

01:32:48it could be blue and yellow

01:32:50for what we know,

01:32:52but they can perceive the shades

01:32:54of other colors better than humans.

01:32:56And cats have a wonderful night vision,

01:32:58they need about

01:33:007 times less light than humans

01:33:02to see in the dark.

01:33:04We thought giraffes were silent,

01:33:06but we recently discovered

01:33:08that they emitted low-frequency sounds

01:33:10at night to communicate with each other.

01:33:12During the day, they do not say a word

01:33:14and mutually warn of danger

01:33:16in a very unusual way,

01:33:18by moving their very developed eyebrows.

01:33:20It is likely that at night

01:33:22it is more difficult for them to distinguish

01:33:24the eyebrows of their peers,

01:33:26that's why they start talking for real.

01:33:28Still about giraffes,

01:33:30these animals sleep well more than 30 minutes a day,

01:33:32but probably not as much as you.

01:33:34Their sleeping rhythm is quite typical.

01:33:36After watching a herd of giraffes,

01:33:38researchers discovered

01:33:40that they slept at night

01:33:42and took short naps in the afternoon.

01:33:44In total, each giraffe

01:33:46has about 5 hours of sleep per day.

01:33:48And by the way, a herd of giraffes

01:33:50is actually called a giraffe tower.

01:33:52It's quite logical knowing

01:33:54that they have such a long neck.

01:33:56Seagulls can drink salty water.

01:33:58They have glands secreting

01:34:00salt near their eyes.

01:34:02These glands quickly purify seawater

01:34:04and the salty residue

01:34:06comes out through their nostrils.

01:34:08Adélie's chubs

01:34:10are truly romantic.

01:34:12They have only one life partner.

01:34:14The male offers a smooth stone

01:34:16to the female to start a family,

01:34:18a bit like a ring of engagement.

01:34:20But as with humans,

01:34:22the penguin female can refuse the gift.

01:34:24Speaking of animal love,

01:34:26foxes are also romantic.

01:34:28Males make good father and husband

01:34:30and they are devoted to their loved ones

01:34:32for life.

01:34:34They take care of females

01:34:36and their young.

01:34:38They improve the terrier

01:34:40and actively participate

01:34:42in the education of their young.

01:34:44Dolphins can sleep with one eye closed

01:34:46and the other open.

01:34:48Half of the brain rests

01:34:50and dreams while the other half

01:34:52scans the environment

01:34:54in search of signs of danger.

01:34:56The perfect brain

01:34:58to sleep during classes

01:35:00and boring meetings.

01:35:02In addition, dolphins

01:35:04and sea otters

01:35:06are the most adorable sleepers

01:35:08of the animal kingdom.

01:35:10In summer, because of the heat,

01:35:12sea otters spend all their time

01:35:14in the water.

01:35:16They swim on their backs

01:35:18and sleep in this position.

01:35:20Babies sleep on their mother's belly

01:35:22and adults hold on to their legs

01:35:24so as not to be separated by the currents.

01:35:26Ostriches do not put their heads

01:35:28in the sand when they feel threatened.

01:35:30In fact, they never put their heads in.

01:35:32The famous expression

01:35:34makes the policy of the ostrich.

01:35:36In reality, ostriches dig holes

01:35:38in the sand for their eggs

01:35:40because they are birds unable to fly.

01:35:42To make sure that they are

01:35:44uniformly heated,

01:35:46ostriches immerse their heads

01:35:48in order to turn the eggs from time to time.

01:35:50But these animals still have

01:35:52a certain propensity for flight.

01:35:54When they are faced with a threat,

01:35:56they can let themselves fall on the sand

01:35:58and remain perfectly still

01:36:00According to a popular belief,

01:36:02ostriches can only breathe

01:36:04when they move,

01:36:06because swimming helps them push

01:36:08the water through their gills.

01:36:10Although many types of ostrich

01:36:12are actually designed in this way,

01:36:14many others, such as nourishing ostriches

01:36:16that hover at the bottom,

01:36:18do not need to swim to pump

01:36:20rich water into their gills.

01:36:22However, all ostriches are devoid

01:36:24of swimming vessels,

01:36:26so if they stop swimming,

01:36:28they can't breathe.

01:36:30But fortunately,

01:36:32the body of an ostrich

01:36:34cannot be compressed.

01:36:36That's why descents

01:36:38or quick climbs

01:36:40are safe for them.

01:36:42Scientists from Japan

01:36:44made cats listen to audio recordings

01:36:46to prove that they were

01:36:48really nourished.

01:36:50In these recordings,

01:36:52the owners of the cats

01:36:54called them by their name.

01:36:56Cats became close to humans

01:36:58because they were attracted

01:37:00by the mice that ate our cereals.

01:37:02They lived with people

01:37:04but were never really taught.

01:37:06And yet we continue to feed them.

01:37:08Birds are actually among

01:37:10the last survivors of dinosaurs.

01:37:12They evolved from theropods,

01:37:14dinosaurs that ran on two legs.

01:37:16So technically, the T-Rex

01:37:18is a distant cousin of the chicken,

01:37:20ostrich and even hummingbird.

01:37:22In reality, pink flames are white,

01:37:24thanks to beta-carotene,

01:37:26a pigment found in

01:37:28algae and shrimps that feed on it.

01:37:30You can also change the color of your skin.

01:37:32If you eat a lot of carrots,

01:37:34it will become slightly orange.

01:37:36This will occur because of the strong beta-carotene

01:37:38in the vegetable.

01:37:40Sailors from all over the world

01:37:42have talked about giant calamari

01:37:44that they met during their trip.

01:37:46For many years,

01:37:48scientists have considered

01:37:50that long-tentacled monsters

01:37:52are actually real.

01:37:54In 2004, the first photo

01:37:56of a giant calamari was made.

01:37:58They really exist.

01:38:00Scientists have measured

01:38:02an animal of nearly 13 meters.

01:38:04Mosquitoes really sting

01:38:06some people more than others.

01:38:08The most attractive humans for them

01:38:10are those who have blood type O.

01:38:12In addition, these insects have a very good view.

01:38:14They are attracted by green, black and red colors.

01:38:16So check the color of your clothes

01:38:18before going camping.

01:38:20To do this, you have to caress

01:38:22the animal's nose with your hand.

01:38:24This kind of hypnosis is called

01:38:26tonic immobility.

01:38:28It occurs thanks to the receptors

01:38:30present in the shark's nose.

01:38:32When you caress them,

01:38:34the receptors send many signals

01:38:36and the shark's brain is unable

01:38:38to treat them all.

01:38:40That's how you're supposed to get close

01:38:42to a shark enough to rub his nose.

01:38:44Elephants are not afraid of mice.

01:38:46But these massive animals have a bad view

01:38:48and that's why they can be scared

01:38:50by a bird or a small creature

01:38:52like a mouse that passes in front of them.

01:38:54It's just a surprise.

01:38:56The chameleon can change color

01:38:58but he doesn't do it to camouflage himself.

01:39:00The change of color helps the animal

01:39:02to regulate its temperature

01:39:04and to communicate with its peers.

01:39:06When most dogs bark,

01:39:08their tongues hang from their mouths.

01:39:10That's why a lot of people think

01:39:12that's how they sweat.

01:39:14In fact, the glands on which the dogs

01:39:16sweat are located on their paws.

01:39:18In addition, there are other glands

01:39:20on all their bodies.

01:39:22Dogs help to evaporate the humidity

01:39:24of their nasal voice,

01:39:26their tongue and the wall of their lungs.

01:39:28It also helps them to cool down.

01:39:30You probably leave the geese alone

01:39:32but don't be so sure

01:39:34that they will do the same with you.

01:39:36Bees respect your limits

01:39:38and if you don't disturb them,

01:39:40they won't hurt you.

01:39:42But geese, for their part,

01:39:44can sting you even if you just pass

01:39:46near their nest.

01:39:48Do you want to find out

01:39:50how well you know the world of animals?

01:39:52This fun quiz will help you.

01:39:54You will have to guess

01:39:56if the statement is true or false

01:39:58before I reveal the truth to you.

01:40:00And don't forget to rate your score

01:40:02and share it in the comments.

01:40:04The head of the flamingo

01:40:06must be placed upside down

01:40:08when this bird eats.

01:40:10Hmm, what do you think?

01:40:12We always recognize flamingos

01:40:14for their particular position.

01:40:16They tend to stand on one leg

01:40:18in shallow waters.

01:40:20They must use the silk

01:40:22at the top of their beaks

01:40:24when they want to filter the muddy water

01:40:26they accidentally carry with their food.

01:40:28That's why they eat with their heads down.

01:40:30Otherwise, they wouldn't be able

01:40:32to properly filter their food.

01:40:34Do animals have digital footprints?

01:40:36Well, yes,

01:40:38animals have digital footprints

01:40:40but only some of them

01:40:42like koalas, gorillas

01:40:44and chimpanzees.

01:40:46The other name for the fingertips

01:40:48is dermal crest.

01:40:50They increase friction

01:40:52when we touch a certain surface.

01:40:54When we increase the size

01:40:56of the contact area

01:40:58between the surface and the fingers,

01:41:00it is much easier to cling to objects

01:41:02and have a firm and secure grip.

01:41:04About 5 million years ago,

01:41:06before primates began to move

01:41:08from tree to tree,

01:41:10they had to be able

01:41:12to cling very firmly.

01:41:14They had to jump from one tree

01:41:16to another without falling

01:41:18or be able to catch any stone

01:41:20or tool they might need

01:41:22at that moment.

01:41:24But the coolest thing is that

01:41:26koalas have digital footprints

01:41:28so similar to those of humans

01:41:30that they can actually alter

01:41:32crime scenes if they are present.

01:41:34A relatively easy question.

01:41:36Wolves actually howl at night.

01:41:38But what are they supposed to do?

01:41:40It is simply the moment

01:41:42when they are most active.

01:41:44So yes, it's true,

01:41:46they raise their heads while howling.

01:41:48But not because they look at the moon,

01:41:50but because it allows the sounds

01:41:52to travel further.

01:41:54In this way, other wolves

01:41:56can hear them even if they are

01:41:58more than 11 km away.

01:42:00This is how these animals communicate.

01:42:02Wolves even have a very specific sound

01:42:04Opossums are so adorable

01:42:06little animals,

01:42:08and they look so cute when

01:42:10they are suspended on their tails.

01:42:12But do they really do it?

01:42:14No, it's just a myth.

01:42:16Once the animal is completely adult,

01:42:18it can no longer support its weight

01:42:20for more than a few seconds.

01:42:22The opossum becomes too heavy

01:42:24and can no longer use its tail

01:42:26in this way.

01:42:28But these animals use their tails

01:42:30to balance and hold on to the branches

01:42:32The red fish has a memory of 3 seconds.

01:42:34True or false?

01:42:36Although it is the image that we give

01:42:38most of the time, it is a myth.

01:42:40These fish can actually remember things

01:42:42for months, even years.

01:42:44Overall, red fish are

01:42:46rather intelligent animals.

01:42:48If we feed a red fish permanently

01:42:50on one side of the aquarium,

01:42:52it will quickly learn that it must stay

01:42:54on this side if it wants to get food.

01:42:56Likewise, if we show it that

01:42:58pressing a blue button

01:43:00allows it to get a reward,

01:43:02i.e. food again,

01:43:04while pressing a red button

01:43:06gives it nothing,

01:43:08the fish will quickly learn

01:43:10where to go to get its meal.

01:43:12When a dolphin sleeps,

01:43:14half of its brain is awake.

01:43:16True or false?

01:43:18This time, it's not a myth.

01:43:20Dolphins are marine mammals,

01:43:22but they breathe using their lungs,

01:43:24unlike fish, which breathe

01:43:26through the branches.

01:43:28Dolphins breathe for a very long time,

01:43:30but they always need to go back

01:43:32to the surface to get some air.

01:43:34This is why the dolphin's brain

01:43:36is never completely asleep.

01:43:38It must have enough motor control

01:43:40at every moment for the animal

01:43:42to know when it has to go back

01:43:44to the surface to breathe.

01:43:46Dolphins also have an eye

01:43:48that remains open while they sleep.

01:43:50Parakeets are selfish

01:43:52and interested.

01:43:54They don't like to share things

01:43:56with other birds of their species.

01:43:58No, it's a myth.

01:44:00It depends on the species,

01:44:02but many birds,

01:44:04including African grey parakeets,

01:44:06always treat them generously.

01:44:08They are really and sincerely willing

01:44:10to help their congeners,

01:44:12even if the other birds

01:44:14are not their friends.

01:44:16Some people are convinced

01:44:18that phantom crabs can use

01:44:20the little teeth they have

01:44:22in their jaws to gnaw.

01:44:24But it's half-true.

01:44:26These crabs do gnaw,

01:44:28but they do it by using

01:44:30the teeth located in their stomach.

01:44:32They can intimidate other animals

01:44:34with their claws,

01:44:36but when that doesn't work,

01:44:38they make scary sounds

01:44:40using the teeth in their abdomen.

01:44:42They have three main teeth,

01:44:44two lateral and one medial,

01:44:46which are hard and elongated.

01:44:48They belong to the gastric grinding

01:44:50apparatus located in the crab's stomach.

01:44:52These teeth also grind

01:44:54the food by rubbing

01:44:56against each other.

01:44:58Your dog has fewer gastric teeth

01:45:00than you. Tic-tac, I'm waiting for your answer.

01:45:02It's true,

01:45:04you might think that your animal

01:45:06has the same kind of experience

01:45:08as you at meal time.

01:45:10But in reality,

01:45:12these animals have different

01:45:14gastric teeth.

01:45:16Dogs have only 1,700

01:45:18but humans have nearly 9,000.

01:45:20But they can still distinguish

01:45:22the four same basic tastes.

01:45:24And they don't like salt.

01:45:26Speaking of dogs,

01:45:28they are daltonian.

01:45:30Truth or myth?

01:45:32This time, it's a myth.

01:45:34Many people believe that dogs

01:45:36only see black and white,

01:45:38which is false.

01:45:40Ducks also distinguish

01:45:42blue and yellow,

01:45:44which makes them less daltonian

01:45:46than many humans.

01:45:48Hens don't have teeth.

01:45:50An old saying goes

01:45:52that hens will have teeth one day.

01:45:54But maybe we already have teeth.

01:45:56Hens can have teeth.

01:45:58They had jaws

01:46:00about 70 to 80 million years ago.

01:46:02Even if they have disappeared,

01:46:04hens still have the necessary genes,

01:46:06which means they can

01:46:08potentially make them grow.

01:46:10If cows had stripes

01:46:12like zebras, flies would avoid them.

01:46:14It's possible. Or not.

01:46:16This time, it's true.

01:46:18Cows are constantly bothered

01:46:20by nasty flies.

01:46:22But zebra stripes are

01:46:24a kind of natural insecticide.

01:46:26Stripes seem to work

01:46:28as a kind of disguise.

01:46:30They disturb the insects' vision

01:46:32and confuse them.

01:46:34Optical illusions disturb us in the same way.

01:46:36Speaking of cows,

01:46:38do you think they are social animals

01:46:40or creatures that prefer to avoid others

01:46:42and enjoy their peace?

01:46:44These are creatures with strong social ties

01:46:46who like to be surrounded by their comrades.

01:46:48A study conducted in 2013

01:46:50showed that it was very stressful

01:46:52for cows to be separated

01:46:54from their best friends.

01:46:56Aren't we all like that?

01:46:58The octopus has two hearts.

01:47:00Or does it have one, like us,

01:47:02the mammals?

01:47:04None of these answers are correct

01:47:06because the octopus has three hearts.

01:47:08These animals use two of their hearts

01:47:10to pump blood into their gills

01:47:12and the other to circulate blood

01:47:14to other parts of the body.

01:47:16If you find this unusual,

01:47:18what will you say about the fact

01:47:20that octopuses have nine brains?

01:47:22In addition to the central brain,

01:47:24they have a mini-brain

01:47:26in each of their eight arms.

01:47:28This helps their arms

01:47:30to act independently.

01:47:32Here is additional information

01:47:34about these animals.

01:47:36Their blood is blue

01:47:38because the protein of their blood

01:47:40gives them a taste with their arms

01:47:42and move at a speed of 40 km per hour.

01:47:44Polar bears are the animals

01:47:46whose fur is the thickest of all.

01:47:48Do you agree with this statement?

01:47:50We could believe it at first glance.

01:47:52After all, they need a lot of protection

01:47:54to survive in such difficult conditions.

01:47:56And yet it's wrong.

01:47:58The fur of the polar bear

01:48:00has two layers

01:48:02and is designed to imprison air

01:48:04right next to the skin.

01:48:06That's why their skin stays dry.

01:48:08Cool!

01:48:10Bulls get angry

01:48:12when they see the color red.

01:48:14True or false?

01:48:16You are certainly not the only one

01:48:18to think that they get angry

01:48:20when someone shakes a red object

01:48:22in front of them.

01:48:24But the truth is that

01:48:26bulls are actually daltonians,

01:48:28just like other cattle.

01:48:30What really annoys them

01:48:32is the movement, not the color.

01:48:34If you touch a frog or a toad,

01:48:36does it look like it's being pulled by the hair?

01:48:38In fact, it is.

01:48:40Because it's false.

01:48:42This idea must have come about

01:48:44because many toads and frogs

01:48:46have bushy skins.

01:48:48And people used to think

01:48:50that these bushes were contagious.

01:48:52As far as locks are concerned,

01:48:54it is not something that animals

01:48:56and humans can easily communicate.

01:48:58There are sharks that shine in the dark.

01:49:00For example, sharks howl.

01:49:02They live in the dark depths of the ocean

01:49:04at a depth of 518 meters below the surface.

01:49:06No one knows exactly why,

01:49:08but they emit a fluorescent light

01:49:10that only other sharks can see.

01:49:12Scientists have detected this light

01:49:14by using filters

01:49:16that block yellow light.

01:49:18They think it could be the way

01:49:20for these big fish to communicate

01:49:22with their friends.

01:49:24This light helps these sharks

01:49:26to fight infections at the microbial level.

01:49:28Cattle have passwords

01:49:30that they use to recognize each other.

01:49:32They are not specific to parasitic birds

01:49:34because they lay their eggs

01:49:36in the nests of other species of birds.

01:49:38Young cows have an internal mechanism

01:49:40that allows them to recognize

01:49:42the field of their species

01:49:44as a kind of secret password

01:49:46that only they know.

01:49:48This is how they manage

01:49:50to find other birds of their species.

01:49:52A grizzly has an incredibly strong bite force.

01:49:54It may seem cute,

01:49:56but if you get close to this big guy,

01:49:58you'd better stay away

01:50:00from his mouth.

01:50:02Its bite force is more than 8 million Pascals,

01:50:04which means it can crush

01:50:06a bowling ball.

01:50:08Some animals have thick stripes,

01:50:10others are more superficial.

01:50:12Tigers are part of the first group.

01:50:14Not only their fur is striped,

01:50:16but their skin is too.

01:50:18It's the same for other big fur felines

01:50:20like snow leopards.

01:50:22Giraffes and zebras

01:50:24are part of the second group

01:50:26because they have patterns

01:50:28on their fur.

01:50:30Speaking of zebras,

01:50:32do you think they are black with white stripes

01:50:34or white with black stripes?

01:50:36At first glance,

01:50:38it seems that the second option is the right one.

01:50:40Their black stripes end mainly

01:50:42inside their legs and on their bellies

01:50:44and the rest is white.

01:50:46But that's not true.

01:50:48Surprisingly, they are black with white stripes.

01:50:50All their fur, whether white or black,

01:50:52grows from follicles

01:50:54containing cells called melanocytes.

01:50:56All animals have these cells.

01:50:58They produce a pigment called melanin

01:51:00that gives color to their fur and skin.

01:51:02In zebras,

01:51:04chemical messages indicate

01:51:06which melanocytes send the pigment

01:51:08to which area of the fur.

01:51:10That's why zebras have black and white stripes.

01:51:12But white is not a pure pigment.

01:51:14It's a lack of melanin.

01:51:16Black is therefore their default color.

01:51:18Koalas have fingerprints

01:51:20so close to ours

01:51:22that they could even alter crime scenes.

01:51:24Apparently, they don't have much in common

01:51:26with humans.

01:51:28But take a closer look at their hands.

01:51:30They have loops and distinctive arches

01:51:32so if a koala wants to do something illegal,

01:51:34he'd better wear gloves.

01:51:36Phantom crabs

01:51:38growl when they are in the presence

01:51:40of creatures they don't like or find threatening.

01:51:42They do it by using their teeth

01:51:44from their stomach.

01:51:46First, they let you know that they will defend themselves

01:51:48if you try something by showing you their claws.

01:51:50If that doesn't work,

01:51:52they emit a scary growl

01:51:54like dogs.

01:51:56But the noise comes from the rubbing

01:51:58of their three long and hard teeth

01:52:00inside their stomach.

01:52:02Phantom crabs make the same noise

01:52:04when they chew food.

01:52:06Speaking of teeth,

01:52:08did you know that narwhals' defenses

01:52:10are actually a kind of upside-down teeth?

01:52:12Unlike most other whales,

01:52:14narwhals are the only ones to have

01:52:16a large defense or teeth

01:52:18that grow inside their jaws.

01:52:20Narwhals have up to 10 million

01:52:22nerve endings that are not protected

01:52:24which means that their defense

01:52:26is very sensitive to any kind of contact.

01:52:28It's almost like a piece of skin

01:52:30because defenses generally don't have

01:52:32a lot of nerve endings.

01:52:34Nearly 95% of humans are right-handed

01:52:36and it's the same for great dolphins.

01:52:38There are even more right-handed people

01:52:40among them than among humans.

01:52:42In a research,

01:52:44scientists discovered that great dolphins

01:52:46turn to the left more than 99% of the time

01:52:48which means that they are right-handed.

01:52:50They place their right side

01:52:52and their right eye

01:52:54closer to the bottom of the ocean

01:52:56when they look for their prey

01:52:58such as squids, shrimps or small fish.

01:53:00Other interesting facts about the ocean.

01:53:02Did you know that humpback whales

01:53:04use bubbles when they chase their prey?

01:53:06You might think that they don't need

01:53:08any particular method given their size

01:53:10but when they chase their prey

01:53:12in deep waters,

01:53:14these whales team up

01:53:16to blow bubbles.

01:53:18While swimming in an ascending spiral,

01:53:20they blow bubbles underwater.

01:53:22These bubbles prevent the fish from escaping.

01:53:24The oldest proof that we have

01:53:26of domesticated cats

01:53:28dates back to 12,000 years ago.

01:53:30Researchers discovered it 20 years ago

01:53:32by digging in an ancient village in Cyprus.

01:53:34They found bones of cats

01:53:36right next to human bones

01:53:38which suggests that they were close

01:53:40even when their lives were coming to an end.

01:53:42Humans were hunters

01:53:44for about 29,000 years.

01:53:46Dogs helped them catch other animals

01:53:48but they didn't think they needed cats

01:53:50until they began to settle

01:53:52and stock up on food.

01:53:54Mice are often found

01:53:56in cereal warehouses

01:53:58and cats proved to be very useful

01:54:00at that time.

01:54:02Macaws are very ingenious

01:54:04when they want to scratch themselves.

01:54:06They can be proud of their beautiful beak

01:54:08but they think that

01:54:10it's not enough to scratch themselves.

01:54:12Researchers have noticed

01:54:14that they tend to spontaneously

01:54:16take a wooden stick

01:54:18to scratch a place that eats them.

01:54:20There is a special type of ant

01:54:22that only lives in a small part of Manhattan.

01:54:24Broadway,

01:54:26between 63rd and 76th streets,

01:54:28is the place that these rampant creatures

01:54:30have decided to choose.

01:54:32The manatee ant seems to come from Europe

01:54:34but no European species

01:54:36can really look like it.

01:54:38Hey, Potter fans,

01:54:40can you believe that there is something

01:54:42like a chocolate frog?

01:54:44Well, not quite, but it looks like it.

01:54:46New Guinea and Australia

01:54:48have not always been separated.

01:54:50They have spent millions of years together

01:54:52until, about 12,000 years ago,

01:54:54the level of the seas separated them.

01:54:56As they stayed together for so long,

01:54:58some animals and some plants

01:55:00still live in the two regions,

01:55:02including the White Rhinos.

01:55:04These frogs have spread very far

01:55:06and some of them

01:55:08who live in hot and swampy regions

01:55:10surrounded by many crocodiles

01:55:12seem to be chocolate.

01:55:14We all know pink flamingos

01:55:16for their particular color,

01:55:18but they are not really pink.

01:55:20They are born gray and would remain so

01:55:22if they did not feed on blue algae

01:55:24and shrimp.

01:55:26These foods contain a specific natural color,

01:55:28which explains why pink flamingo feathers

01:55:30turn pink over time.

01:55:32When the little devils of Tasmania

01:55:34grow up and leave their mother,

01:55:36they regroup and form bonds

01:55:38that last a lifetime.

01:55:40Cows also have stronger

01:55:42social bonds than we think.

01:55:44They like to socialize

01:55:46and form lasting friendships.

01:55:48A study even revealed

01:55:50that their heart rate

01:55:52increases significantly

01:55:54as a sign of stress

01:55:56when they are separated

01:55:58from their best friends.

01:56:00Imagine that you can simply

01:56:02freeze during the cold winter days

01:56:04Aquatic frogs mainly

01:56:06hibernate underwater

01:56:08and spend most of the winter

01:56:10at the bottom of a pond,

01:56:12a lake or another stream.

01:56:14Toads and frogs generally

01:56:16have cold blood,

01:56:18which means that the temperature

01:56:20of their bodies

01:56:22adopts that of their environment.

01:56:24Thus, frogs can freeze during the winter

01:56:26due to a high concentration

01:56:28of sugar or glucose

01:56:30in their vital organs.

01:56:32Frogs can move at a speed

01:56:34of 40 km per hour

01:56:36and project ink

01:56:38that not only blurs

01:56:40the predator's field of vision

01:56:42but also nights it.

01:56:44Pigeons also have 9 brains,

01:56:46the central brain

01:56:48and 8 smaller brains

01:56:50located in their arms.

01:56:52This is why their arms

01:56:54can open a shell

01:56:56while the central brain

01:56:58is busy doing something else.

01:57:00Frogs can touch and taste

01:57:02in order to detect

01:57:04the chemical substances

01:57:06produced by marine creatures.

01:57:08Thus, a frog can distinguish

01:57:10its prey from a rock.

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