Being better able to tolerate cooler temperatures than their rivals, tyrannosaurs grew larger to become the apex predators of ...

Researchers trace T. rex origins to Asia and megaraptors to Gondwana. Climate changes and predator extinction fueled their ...

Tyrannosaurus rex was one of the most ferocious ... have allowed scientists to gain a deeper understanding of how this apex predator lived.

A new study suggests that the T. Rex's ancestors may have evolved in North America, contradicting the mainstream evolutionary ...

There's a new T. rex in town. Paleontologists have discovered the heaviest Tyrannosaurus rex ever seen in the fossil record. This massive predator, nicknamed Scotty, weighed roughly 19,500 pounds ...

You might soon carry a wallet made from dinosaur skin. No, not fossilized—actual leather engineered from T. rex DNA in a lab.

“They likely kept the tyrannosaurus down,” she said. "Ulughbegasaurus was the dominant apex predator of its time." The sheer size of Ulughbegasaurus gave it a commanding presence, but its ...