Describes the characteristics and habits of the massive flesh-eating dinosaur, as well as theories about why it became extinct.
"Picture a huge dinosaur standing in front of you. It is one of the largest meat eaters ever to walk the Earth. It is ready to attack. As it charges, you see its sharp, curved, knifelike teeth. They line the dinosaur's tremendously powerful jaws. You are about to be eaten by a frightening flesh eater known as Tyrannosaurus rex.
Fortunately, you will never find yourself in this scary spot. Tyrannosaurus rex, along with the rest of the dinosaurs, no longer exists. It lived toward the end of the Mesozoic era, a time also known as the Age of the Dinosaurs. This era lasted from about 245 million years ago to about 65 million years ago.
Tyrannosaurus rex appeared during the Cretaceous period..."