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Le membracide du Brésil est un insecte d'apparence étrange avec des boules épineuses semblables à des antennes sur sa tête—mais ne l'écrasez pas ! Les scientifiques pensent que ces étranges épines pourraient l'aider à effrayer les prédateurs ou même à détecter son environnement, ce qui en fait une créature fascinante à étudier. Il y a beaucoup d'autres insectes que vous ne devriez pas non plus toucher, comme les réduves, qui peuvent transmettre des maladies, ou les chenilles aux couleurs vives, dont certaines peuvent piquer avec des poils venimeux. Même les coccinelles à l'air inoffensif peuvent libérer un liquide nauséabond lorsqu'elles sont menacées. Les insectes ont souvent des rôles uniques dans les écosystèmes, comme polliniser les plantes ou contrôler les nuisibles, il vaut donc mieux les laisser tranquilles. Au lieu de les écraser, laissez ces petites créatures mener leurs vies étranges et merveilleuses ! 🐛🕷️ Animation créée par Sympa.
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Fun
Transcript
00:00Hollywood studios and video game designers call for talented artists to imagine fantastic monsters and creatures from other worlds.
00:09Although their digital creations are often impressive and terrifying, they remain modest in the face of the masterpiece of the greatest artist ever.
00:19Nature.
00:20Here, it is not a question of evoking the classical beauty of animals or fish, but of creatures whose existence seems to challenge understanding.
00:29These beings appear to be visitors from a distant planet.
00:33One of these unusual visitors is the Brazilian membrane.
00:37This strange creature, which inhabits the virgin forest, belongs to the family of giraffes, insects that are among the most enigmatic on the planet.
00:46However, even within this family, the globular bosidium stands out singularly.
00:52Of the size of a small weight, it has on its back spherical and futuristic bulges, reminiscent of the blades of a helicopter.
01:00Is it an antenna? A defensive device against these predators?
01:04Scientists do not yet have a definitive answer, content to advance some hypotheses.
01:09According to one of them, this insect would exhibit this structure to signal its genetic vigor to females.
01:15In a comparable way, the paons deploy their sumptuous tails, not only to impress their predators, but also to seduce their potential partners and ensure a offspring.
01:25However, this theory has been quickly removed, because this appendage is present not only in males, but also in female membranes.
01:34It is also possible that these spheres act like lures.
01:38A predator could attack it, thus giving the insect the opportunity to escape by detaching this part of its body.
01:45However, no observation in a natural environment has confirmed such behavior.
01:49Another hypothesis postulates that this appendage would be used to imitate a cordyceps mushroom.
01:54Do you remember these parasites, capable of invading the body of an ant and turning it into a zombie, before a huge mushroom sprouts from its corpse?
02:03Some researchers suggest that the Brazilian membrane would simulate this mushroom to dissuade its predators from attacking it.
02:10Forest animals instinctively know what they can touch and what it is better to keep away from.
02:16As for this strange hat, it could well emit signals to space or another planet, transmitting information on Earth.
02:25Another fascinating singularity of the Bocchidium globular lies in its way of communicating.
02:30These insects exchange vibrations.
02:32When an individual is perched on a tree and tastes juicy leaves,
02:36it can send vibratory signals along the trunk to invite other members of its species to share the meal.
02:42This ability can also be used to alert them in the event of a threat.
02:46In general, bocci are enigmatic creatures.
02:50Even species that seem to be born from simple insects remain a challenge for science.
02:56Once hatched, the bocci take refuge underground,
02:59where they feed on the juices of the roots of trees and plants while continuing their development.
03:05They dig tunnels there and remain sheltered for 13 or sometimes 17 years.
03:10And when their time is up, they all emerge at the same time.
03:15It is then several hundred, if not thousands of insects that invade the sky, forming a gigantic swarm.
03:22Their deafening stridulation causes fear among the animals.
03:26As for humans living nearby, they often complain that the noise of the bocci disturbs their sleep.
03:33But why do these insects only come out once every 13 or 17 years?
03:37And what do they do during all this time underground?
03:39Scientists know nothing about it.
03:41Their sudden appearance could be linked to the presence of predators.
03:45Bocci are easy and very nutritious prey.
03:49They are particularly fond of animals such as foxes and owls.
03:53If they came out every year, these predators would eventually adapt to their cycle and exterminate them.
03:59This is why bocci wait a long time, so that their enemies cannot predict their emergence.
04:04In addition, they choose to manifest when the populations of their predators are at their lowest level.
04:11After meeting this creature, you will probably no longer look at the strawberries in the same way.
04:17Imagine a white strawberry, from which about twenty long tentacles escape.
04:22It is as if a monster straight out of the Lovecraft universe had opened a portal to our dimension inside this strawberry and was now trying to extirpate from it.
04:31Fortunately, it is unlikely that you will come across this monster near humans.
04:36The Promachochrinus fragarius resides in the glacial depths of the Antarctic Ocean.
04:42These creatures belong to one of the four categories of crinoids,
04:46perfectly symmetrical animals that anchor to the seabed like a plant stem.
04:51Once mature, they free themselves from their support and drift across the ocean.
04:56Thanks to their tentacles, they perform elegant rhythmic movements to swim.
05:01They also use their hands to capture plankton.
05:05Each tentacle is covered with thousands of tiny sticky threads that trap their prey,
05:10recalling the functioning of a spider web.
05:13In addition to the white varieties, scientists have discovered species of purple and even dark red colors.
05:19By observing them, it is difficult not to imagine that many artists were inspired by crinoids
05:25to design monsters in their science fiction films or video games.
05:30According to you, what is the longest animal on the planet?
05:34It is neither a giraffe nor a gigantic anaconda of the Amazon jungle.
05:39Look at this long luminous whip floating in the deep waters.
05:42Here is the answer.
05:44This creature, called Siphonophore, can reach an impressive length of 40 meters,
05:50even exceeding that of the blue whale, the largest mammal in the world.
05:55But by examining it more closely, you will see that it is not a sea snake.
05:59It looks more like an elongated jellyfish, with a translucent body and a luminous head.
06:04Throughout its immense body, the Siphonophore is provided with disturbing filaments
06:10that extend like the legs of a thousand-legged mutant from the abyss.
06:14It is better not to approach it.
06:16Its hair is venomous and serves as much to repel its enemies as to capture its prey.
06:22At the same time disgusting and fascinating, a bit like my mother,
06:25the Siphonophore defends itself from predators thanks to a thick viscous mouth.
06:29This funny specimen is actually a kind of fish without a jaw.
06:33You may have already noticed it on social networks, held in the hands of some curious people.
06:38When it feels threatened, it expels a mucus that looks like tree roots or a nervous system.
06:45This sticky substance infiltrates the eyes and branches of its opponents,
06:50paralyzing them for just long enough to allow it to run away.
06:53These creatures are also among the oldest on the planet.
06:57They appeared about 500 million years ago and have always led a life of carnivores.
07:04Even by observing this tree for several minutes, you could not detect what was ringing.
07:09One of its branches is not really one.
07:12It is a great hibiscus, the undisputed master of camouflage.
07:16Its plumage allows it to melt perfectly in its environment
07:20and its incredible patience still strengthens its talent.
07:23The great hibiscus can remain perfectly still for hours by gnawing its prey.
07:28To be even less visible, it sometimes closes its eyes, but this does not prevent it from watching you.
07:33Indeed, small orifices under its eyelids allow it to keep an eye on what surrounds it.
07:40While scientists invest millions of dollars in sophisticated equipment to study seismological activity,
07:47a hibiscus manages to do so thanks to its strange muzzle.
07:51The star-shaped condylus is equipped with more than 22,000 sensory receptors on its star,
07:56capable of capturing not only seismic vibrations, but also the electrical signals emitted by its prey.
08:02It is one of the rare animals to have a real underwater flair.
08:06It releases tiny bubbles from its muzzle, then sucks them up to identify the odors.
08:11In addition, it is a lightning eater, capable of swallowing its food in less than a quarter of a second.
08:17The piranhas impress with their jaws and sharp teeth like razors.
08:22But imagine a fish with rectangular teeth reminiscent of humans.
08:27Here is the hibiscus, which seems to have an artificial jaw.
08:31Although frightening, these creatures feed on both plants and meat.
08:35But their main favorites are fruits and nuts.
08:39Evolution has equipped the hibiscus with perfectly adapted teeth to grind the fruits of fallen trees along the Amazonian watercourse.
08:46Often confused with the piranha, this fish urges caution.
08:50In fact, these square teeth can inflict serious damage, even on targets that are not on its menu, like you or me.

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