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.
The Tyrannosaurus rex was 40 feet long and 15 to 20 feet tall. Its skull was 5 feet long, while its jaw was 4 feet long. Its thighs were very powerful, and its tail was long and strong. In order to devour its prey, the Tyrannosaurus rex used jagged teeth to rip through flesh. The Tyrannosaurus rex was the biggest carnivore in its habitat and preyed on sauropods, ceratopsians and hadrosaurs. Many scientists believe that the Tyrannosaurus rex was a scavenger as well as a carnivore.
The Tyrannosaurus rex lived in the Maastrichtian Age of the upper Cretaceous Period. It lived in areas that extended from what is now Canada all the way to the southwestern United States. The earliest fossils were teeth found by Arthur Lakes close to Golden, Colorado, in 1874. In 1900, the first partial skeleton of a Tyrannosaurus rex was found in eastern Wyoming by the assistant curator of the American Museum of Natural History, Barnum Brown. Over time, Brown went on to find five partial skeletons. The fossils were sold to the Carnegie Museum of Natural History in 1941.