Tyrannosaurus rex

Everybody knows Tyrannosaurus rex, and it's the most popular of all dinosaurs. It was not the largest meat eater, but it was one of the scariest. Its brain was twice the size of other giant meat eaters like Giganotosaurus, and it was faster and had better vision. Though its arms were tiny and nearly useless, its jaws were strong enough to crush any animal.

T. rex was named more than one hundred years ago, but the most complete T. rex, "Sue," was discovered in South Dakota twenty years ago. The first juvenile T. rex was found even more recently by a dig crew from the Los Angeles County Museum.

Text by "Dino" Don Lessem