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 ...

The study says the T. rex evolved to have an extremely strong skull, and since evolution tends to prefer perfecting one feature at at time, it came at the expense of upper body strength.

There’s a new T. rex in town. It shares the famous title, but not the territory: this one was a marine reptile, and its ...

“Besides being huge, roughly twice the length of the largest great white sharks, T-rex appeared to be a much meaner animal ...

We’ve all seen the jokes about Tyrannosaurus rex and its tiny arms. One of the most fearsome predators ever to walk the Earth ...

Why did T. rex have such tiny arms? Scientists now think it’s because its giant head became the ultimate hunting tool. Across ...

Researchers at SMU and the Perot Museum have identified a new species of mosasaur, a 'T. rex of the sea' that lived alongside dinosaurs millions of years ago.

The Tyrannosaurus rex seemingly came out of nowhere tens of millions of years ago, with its monstrous teeth and powerful jaws dominating the end of the age of the dinosaurs. How it came to be is among ...