Named the “king of the tyrant lizards,” T. rex was built to rule. Find out how these dinosaurs lived, what made them so ...

Tyrannosaurus rex possessed a preposterously massive skull – 5 feet long (1.5 meters) and built to enable bone-crunching bite force – but presented preposterously puny arms. And many other meat-eating ...

Come July, a Tyrannosaurus rex fossil is going under the hammer at Sotheby’s New York, with a colossal estimate to match.

WASHINGTON (Reuters) - A group of researchers is proposing that Tyrannosaurus, the most famous of all dinosaurs and the ultimate apex predator, actually includes three species and not just the single ...

T. rex teeth — possibly up to six inches long — were thought by many to be too big not to protrude. In recent years, paleontologists have debunked other stereotypical portrayals of the dinosaur. Some ...

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 ...

The iconic Tyrannosaurus rex, or "T. Rex," might need to be re-categorized into three distinct species, according to researchers. The Tyrannosaurus rex is the only recognized species of the group of ...

A new study has found that the T. rex's arms evolved to become smaller at the same time as its head grew to catch more prey ...

An analysis of 85 dinosaur species shows that tiny forearms in meat-eating dinosaurs were the result of an evolutionary trade ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. What did the T. rex use its little arms for? – ...

A new analysis of Tyrannosaurus skeletal remains reveals physical differences in the femur, other bones and dental structures across specimens that could suggest Tyrannosaurus rex specimens need to be ...

Tyrannosaurus rex was a huge land predator during the twilight of the age of dinosaurs. But it was not the only T. rex that terrorized the Cretaceous Period. ​There also was a marine reptile named ...