A massive predator once roamed the Earth, towering over its rivals and casting a long shadow on the ancestors of T. rex. This giant, now known as Ulughbegasaurus, ruled the prehistoric world around 90 ...

WASHINGTON, Aug 15 (Reuters) - Tyrannosaurus subdued prey with raw power, using bone-crushing bite force. But other meat-eating dinosaurs that rivaled T. rex in size used different approaches.

NEW YORK - The fearsome bite of a hungry Tyrannosaurus rex left behind new evidence that the famous beast hunted for food and wasn't just a scavenger. Researchers found a part of a T. rex tooth wedged ...

New research reveals snake venom primarily evolved for hunting and digesting prey, not for defence against humans or predators. A study found most bites cause delayed pain, supporting this hunting ...