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

At least five groups of two-legged, mostly meat-eating theropod dinosaurs experienced a shortening of the upper arms over the course of their evolutionary journey. But why did they have such comically ...

They were once one of the most fearsome dinosaurs to roam the earth, with an enormous set of teeth, but why did the T.rex have such tiny arms? Well, scientists now think they might have an answer.

New research suggests the predatory dinosaur’s famously small limbs weren’t just an evolutionary fluke – but a direct ...

Researchers say they have identified a new species of Tyrannosaurus that traces the dino's lineage to North America much earlier than previously thought, and could shed new light on the murky origins ...