Imaginez un dinosaure si puissant que même le redoutable T-Rex devrait réfléchir à deux fois avant d'engager le combat. Rencontrez le Spinosaurus, le seul dinosaure qui pourrait potentiellement terrasser le roi des dinosaures. Avec sa taille immense, son corps plus long et sa gigantesque épine en forme de voile, ce prédateur géant était conçu à la fois pour la terre et pour l'eau, lui conférant un avantage considérable. Bien que le T-Rex possédait une morsure écrasante, le Spinosaurus avait de longues griffes acérées et pouvait le surpasser en manœuvrabilité dans l'eau. Certains scientifiques pensent que dans un affrontement, le Spinosaurus pourrait bien en sortir vainqueur. C'est comme une bataille préhistorique des titans ! Animation créée par Sympa. ---------------------------------------------------------------------------------------- Musique par Epidemic Sound https://www.epidemicsound.com Pour ne rien perdre de Sympa, abonnez-vous!: https://goo.gl/6E4Xna ---------------------------------------------------------------------------------------- Nos réseaux sociaux : Facebook: https://www.facebook.com/sympasympacom/ Instagram: https://www.instagram.com/sympa.officiel/ Stock de fichiers (photos, vidéos et autres): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru ---------------------------------------------------------------------------------------- Si tu en veux encore plus, fais un tour ici: http://sympa-sympa.com
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00:00The Tyrannosaurus rex, this feared predator and emblematic figure of the animal kingdom,
00:06is considered as the undisputed sovereign of dinosaurs.
00:10Since its discovery in 1902, this fascinating creature has captivated the interest of scientists and the general public.
00:17However, despite its frightening reputation, other creatures could rival and even defeat the T-rex.
00:26Among its true adversaries was the Triceratops, a surprisingly formidable herbivore.
00:33Despite its plant-based diet, this impressive dinosaur had two imposing horns, as well as a smaller one,
00:40in addition to its reinforced bone structure, which constituted an effective defense against terrifying predators such as the T-rex.
00:49This dinosaur demonstrates that herbivores were not to be taken lightly.
00:54Its formidable horns, reaching a width of about 30 cm at the base and ending in a sharp point, could pierce any predator, including a T-rex.
01:05The Triceratops also had a colossal skull, equipped with a large bone collar, solid and protective, adorned with small horns.
01:16From the tip of its beak to the spiny edge of the collar, the head of the Triceratops could reach an impressive length of 3 meters and weigh nearly a ton.
01:27This gargantuan structure, the dinosaur's head, was linked to the body by a rotule joint,
01:35which allowed the Triceratops to turn its head with great agility and to stretch its horns to repel predators.
01:43This is one of the reasons why a T-rex who decided to take a Triceratops, was actually taking a significant risk.
01:50The outcome of a fight between these two giants could vary considerably.
01:54The king of the dinosaurs could triumph and enjoy the feast so much awaited.
01:59But it was not uncommon for the hunter to become the hunter, turning the situation to his advantage.
02:05And if we now explore some more unusual and unknown facts about these fascinating creatures, what are dinosaurs?
02:11Did you know, for example, that dinosaurs probably did not roar?
02:15Scientists think they emitted rather soft sounds, similar to roars.
02:20They probably produced sounds comparable to those of ostriches, which emit growls, or columns, which roar.
02:29Indeed, many modern birds use a method of communication called closed-mouth vocalization,
02:36where sounds are generated by inflating the throat rather than by passing air through the syrinx, the vocal organ of birds.
02:43In other words, the Jurassic Park movies were heavily mistaken.
02:47Many of the first reconstitutions of dinosaurs were influenced by the scary sounds associated with modern predators such as lions.
02:55In the movies, dinosaurs often appear with their mouths wide open when they produce sounds, like lions when they roar.
03:02However, the real dinosaurs probably did not act like this, especially before attacking their prey.
03:08They would not have tried to signal their presence to other animals nearby, especially when they were in search of food.
03:15The Quetzalcoatlus, belonging to the ancient group of pterosaurs, was the largest flying animal to have ever existed on Earth.
03:22This being the size of a giraffe had fat limbs, an incredibly long beak and an impressive wingspan of 12 meters.
03:30Researchers estimate that these creatures probably used their folded wings as legs and therefore moved on four legs.
03:39Discovered about 50 years ago, the Quetzalcoatlus remains a complex subject of study for scientists,
03:46who are still struggling to reconstruct the details of its way of life.
03:51For example, we still wonder how it managed to lift its huge body from the ground to take off.
03:58Whatever the answer, this animal offers a fascinating overview of the largest flying creatures that have ever existed.
04:04One of the reasons why it was so difficult to unravel the mysteries of the Quetzalcoatlus is related to its hollow bones,
04:10similar to those of modern flying animals that facilitate its flight.
04:15But when its fragile bones, similar to chips, are broken, it is impossible to move.
04:21The Tyrannosaurus Rex was not a fast runner.
04:24Its maximum speed was probably about 16 km per hour, which is about that of an average human runner.
04:31As for the young T-Rex, according to the records, it had a maximum speed of about 20 km per hour.
04:37Its maximum speed was about 20 km per hour, which is about that of an average human runner.
04:44The largest known terrestrial dinosaur is the Argentinosaurus.
04:49This gigantic animal could reach up to 40 meters long for 21 minutes,
04:54and could reach a maximum speed of up to 20 km per hour.
04:59The largest known terrestrial dinosaur is the Argentinosaurus.
05:04This gigantic animal could reach up to 40 meters long for 21 minutes,
05:10This gigantic animal could reach up to 40 meters long for 21 meters high.
05:15For comparison, an average blue whale measures about 21 meters long,
05:21which makes it easier to visualize the enormity of this dinosaur.
05:28Many dinosaurs had feathers, and not just birds.
05:33The largest feathered dinosaur is the Yutyrannus Walli, whose name means the tyrant with beautiful feathers.
05:41According to researchers, this super predator, related to the T-Rex,
05:45probably used its feathers to keep its heat.
05:51It is surprising to note that some of the largest dinosaurs were actually herbivores.
05:57Among them, the Brachiosaurus and Apatosaurus,
06:01two colossal creatures that fed exclusively on plants.
06:09As strange as it may seem,
06:11it could be possible to differentiate a simple stone from a fossil of a dinosaur just by licking it.
06:18Although this method does not seem very orthodox,
06:21paleontologists sometimes even use it.
06:25Indeed, a fossil will stick slightly to the tongue due to its porosity,
06:30which will not be the case with an ordinary stone.
06:37When dinosaurs were born during the Triassic period,
06:40about 230 million years ago,
06:43the terrestrial continents were grouped into a single supercontinent called Pangaea.
06:49During the next 165 million years, Pangaea slowly fragmented,
06:54which led to the separation of many species of dinosaurs.
06:58Despite the distribution of fossils of dinosaurs around the world,
07:02most are found mainly in three regions,
07:05the high-altitude Badlands in China, North America and Argentina,
07:10which house the largest quantities of fossils easily accessible.
07:14In reality, fossils are present everywhere,
07:18but they are more easily discovered in desert environments where vegetation is rare.
07:25Interestingly, most fossilized dinosaur bones are no longer bones.
07:31Fossilization often occurs when an organism is trapped between layers of sediment or sand.
07:38Over millions of years,
07:41the remains are surrounded by a layer of water,
07:44which replaces the organic materials of origin with minerals.
07:48Thus, the fossil becomes a copy similar to a rock, rather than the original.
07:54The Triceratops had three huge horns on its head,
07:58but these teeth were even more remarkable.
08:01This dinosaur had about 800 teeth,
08:04and new ones grew continuously throughout its life.
08:08They were divided into groups of 36 to 40 columns,
08:12each containing 3 to 5 teeth stacked vertically on top of each other.
08:18Some dinosaurs, like modern birds,
08:21had hollow bones that were used to store air.
08:24This adaptation allowed them to improve their respiratory capacity,
08:28lightening their mass and allowing them to breathe much more efficiently.
08:33The Nigersaurus had the particularity of renewing its teeth every two weeks.
08:37This creature had successive rows of teeth in reserve, hidden in its mouth.
08:43When a tooth decayed, it fell, and the next row took its place.
08:50Unlike a sudden extinction caused by the collision of an asteroid with Earth,
08:55the extinction of dinosaurs took place gradually.
08:59The impact probably triggered a series of events that changed the terrestrial environment.
09:04This process lasted for several hundred, even thousands of years,
09:09resulting in the extinction of all dinosaurs, except for avian dinosaurs.
09:19The term dinosaur comes from Ancient Greek, where deinos means terrible,
09:24and soros means lizard.
09:27The whole thing is translated as terrible lizard.
09:30Although this name seems to be suitable for formidable predators like the T-Rex,
09:35it is much less suitable for small creatures like the Mii.
09:39Rumor has it that when Sir Richard Owen, an English biologist,
09:43invented the term to designate these creatures,
09:46he would have heard terrible in a different sense.
09:49He described them as terribly large, referring to their colossal size,
09:54much larger than those of the reptiles discovered before.