One fun fact about the Tyrannosaurus rex is that the word "rex"comes from a Latin word meaning "king," while the word "tyrannosaurus" comes from a Greek word meaning "tyrant lizard." The T. rex lived in western North Ame... More »

Tyrannosaurus rex dinosaurs lived during the late Cretaceous period, which was about 65 million years ago, on a continent named Laramidia. Laramidia is now part of North America. The name Tyrannosaurus rex means "tyrant ... More »

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The Tyrannosaurus rex was a carnivore and one of the largest meat-eating dinosaurs on Earth. It could consume nearly 500 pounds of meat in a single bite. The term "tyrannosaurus" means tyrant lizard. More »

The Tyrannosaurus rex was a carnivore and one of the largest meat-eating dinosaurs on Earth. It could consume nearly 500 pounds of meat in a single bite. The term "tyrannosaurus" means tyrant lizard. More »

A Tyrannosaurus rex stood about 15 to 20 feet tall, or 4.6 to 6 meters high. Its length was about 40 feet, or 12 meters. More »

The Tyrannosaurus rex primarily used its teeth to defend itself. The T-rex was a predator, and the structure of its teeth and skull allowed it to defend itself well. More »

Tyrannosaurus rex primarily ate herbivore dinosaurs, including the Edmontosaurus and the Triceratops. Studies suggest that the Tyrannosaurus rex also practiced cannibalism. Paleontologists believe that if two Tyrannosaur... More »