Tyrannosaurus rex

Tyrannosaurus rex

Tyrannosaurus rex or T. rex was a species of large theropod dinosaur that lived  during the very end of the late Cretaceous period. It is the most famous and popular of all the dinosaurs,  known for it's cultural impact, even more than Apatosaurus (formerly known as Brontosaurus). It is also called the King of the Dinosaurs. T. rex is the 4th largest land predator ever at 13 meters (43 ft) long and 7 tons. Carcharodontosaurus, Giganotosaurus, and Spinosaurus are all bigger. Evidence has been found though that Tyrannosaurus rexes often fed on ceratopsids. It is now clear that T. rex is both predator and scavenger. They were also potential cannibals, eating their own kind.

In When Dinosaurs Roamed America

In the late Cretaceous segment, Tyrannosaurus

 is first seen staking some Triceratops, Edmontosaurus , and Ornithomimus. Later, a young T. rex charges at a herd of Triceratops but the herd fend him off. He soon sees a Quetzalcoatlus feeding on a Triceratops carcass. The prince soon chases the pterosaur to hunt him, but the Quetzalcoatlus escapes. He walks away and soon walks home in the dark, thanks to his night vison. We see a pack of T. rexes made of the prince's family. We see that the mom that has a twisted ankle, but when the kids are play-fighting, 1 of them hits her ankle, making her roar in pain. Then the pack leave. The next morning, the pack of T. rexes is hunting the herd of Edmontosaurus. The prince chases them into the trap with the larger princess coming out, surpising 2 Edmontosaurus. Soon the mother attacks and kills 1 of the

T. rex with a dead Edmontosaurus

hadrosaurs. She roars into the air. While eating, she sees an asteriod coming to the earth. It hits the earth, causing the Tyrannosaurus rexes to ditch their kill. Lastly, after the exinction, some mammals called Purgatorius crawl on some T. rex bones.