Tyrannosaurus rex was one of the largest meat-eating dinosaurs that ever lived. Its strong thighs and long, powerful tail helped it move quickly, and its massive 5-foot-long (1.5-meter-long) skull could bore into prey.Tyrannosaurus rex lived in forested river valleys in North America during the late Cretaceous period.
Threats of Extinction
It became extinct about 65 million years ago in the Cretaceous-Tertiary mass extinction.This extinction killed the remaining dinosaurs (not just T. rex) and many other animal and plant groups. This extinction was probably caused by a catastrophic asteroid colliding with Earth.
Jurassic Park (4/10) Movie CLIP - Tyrannosaurus Rex (1993) HD