Tyrannosaurus rex ("sue") lived during the late cretaceous period about 65 million years ago, toward the end of the Mezozoic era. T-Rex lived in a humid, semi-tropical environment, in open forests with nearby rivers and in coastal forest swamps. T-rex was about 40 feet long and about 15 to 20 feet tall. It had tiny arms about 3 feet. It was bipedal, it walked on two muscular legs. Scientists believe the powerful predator could eat up to 500 pounds of meat in one bite. T-Rex was also a very big meat-eater dinosaur called a carnivore. It would have been at the top of the food chain. It's known to have fed on other large dinosaurs such as Edmontosaurus, Anatosaurus and Triceratops and probably could have swallowed small dinosaurs in one
