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

The Texas fossils were noticeably different from similar specimens found in Kansas. They were larger, had serrated teeth and ...

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

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.

You probably wouldn't say it to its face, but the famously fearsome Tyrannosaurus rex has long been the butt of tiny arm ...

When you think of a Tyrannosaurus rex, the first thing that comes to mind is its gigantic, bone-crushing jaws, sharp teeth ...

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

Nearly 300 Tyrannosaurus rex bones that were dug up from three sites in the United States and assembled into a single skeleton sold Tuesday at an auction in Switzerland for $5.3 million, below the ...

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 ...