Some scientists have suggested a different idea: T. rex’s arms may have evolved to be smaller as another body part grew larger. The fossil record reveals that arms got shorter as theropod skulls got ...

Since its discovery in 1902, there’s only been one known type of Tyrannosaurus: the rex. However, a new study says there were three types of Tyrannosaurus, based on differences in fossils' femurs and ...

The jaw of the Tyrannosaurus Rex had sensitive nerves that may have allowed it to differentiate between parts of its prey, a new study found. By Maria Cramer Was the Tyrannosaurus Rex a foodie? The ...

A study published this week proposes three species of Tyrannosaurus instead of the long-accepted single species rex. The researchers analyzed dozens of T. rex specimens, of which there are only about ...

Paleontologists have just reported the world's biggest Tyrannosaurus rex and the largest dinosaur skeleton ever found in Canada. The 13-metre-long T. rex, nicknamed 'Scotty,' lived in prehistoric ...

The Tyrannosaurus rex seemingly came out of nowhere tens of millions of years ago, with its monstrous teeth and powerful jaws dominating the end of the age of the dinosaurs. How it came to be is among ...

The name “Tyrannosaurus”, meaning tyrant lizard, was coined in 1905 by the American palaeontologist Henry Fairfield Osborn ...

Ever since the first Tyrannosaurus skeleton was put on display in 1905, the tyrant lizard has captivated the world. Now, researchers say that the Tyrannosaurus may have actually developed into three ...

Tyrannosaurus rex was not just a huge beast with a big bite, it had nerve sensors in the very tips of its jaw enabling it to better detect -- and eat -- its prey, a new study finds. Tyrannosaurus rex ...

What starts as a list of obscure carnivorous dinosaurs quickly becomes a terrifying journey through some of the strangest apex predators the prehistoric world ever produced. While Tyrannosaurus rex ...