The Tyrannosaurus rex has long been cast as the ultimate predator—a towering, sharp-toothed monster tearing through the Cretaceous like a prehistoric movie villain. That being said, not everyone’s ...

New research suggests the T.rex evolved tiny arms as a trade-off for its large skull. As a result, it didn’t need strong arms to hunt prey.

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 Researchers found T. rex arms shrank as their skulls grew larger, ...

Mighty meat-eating dinosaurs like Tyrannosaurus rex had tiny arms because they used their powerful heads as the primary weapon, according to a new study. The fearsome T rex was a massive dinosaur, ...

When you think of a Tyrannosaurus rex, the first thing that comes to mind is its gigantic, bone-crushing jaws, sharp teeth and fearsome stature. But then, immediately after that, a slightly more ...