Tyrannosaurus Rex

==== Everyone heard about Tyrannosaurus-Rex, the most famous dinosaur and maybe the most ferocious one. Discovered in 1902 by the scientist Barnum Brown (1873-1963) in formation of Hell Creek, Montana, USA it is the best known dinosaur. Its first fossil was a teeth, but it would take a lot of time to identify this titan. It is found commonly in Hell Creek formation. We are sure it had been present when the mass extinction of dinosaurs. It didn't grew very fast when it was young but when reaching 16 years old, it had a very rapid growth. maybe the maximum of age reached was about 30 years. ==== Tyrannosaurus is included to the group of large theropods. Its name means king lizard. Scientists believed that he fed with hadrosaurs, ceratopsians or even sauropods. We don't know if it hunted in packs or was a lonely hunter but comparing it to the most of his cousins we think maybe it hunted with packs. Tyrannosaurus was not so friendly with his own relatives, because they were found his teeth in other tyrannosaurs. We still can include cannibalism into the possibilities.

The most amazing things about T-Rex were his teeth. The biggest tooth was 30.5 cm, almost the size of a banana. With a size reaching 12 m and an height about 6000 kg, this large dinosaur ruled the North America. Imagine this titan walking in the Earth 67 million years ago(upper Cretaceus Period). His head was huge compared with his body. Today we think Tyrannosaurus had a big brain ,but his predatory skills needed a lot of space, so his logic part in his brain was very little. He had a big, muscular neck to hold his head. Today, we now the T-Rex was fury. His legs were big allowing him to run with a speed of 30 km/h and reaching 70 km/h. His tail stayed up to make moving easier and his eyes were pointed in such a way to make a binocular vision, just like us. His small arms were only 1 m and we still don't know what use they had. Today T-Rex is used in entertainment (example., Jurassic World) and is known in every corner of the world.