An analysis of 85 dinosaur species shows that tiny forearms in meat-eating dinosaurs were the result of an evolutionary trade ...

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 ...

The newly described mosasaur Tylosaurus rex spanned up to 43 feet (13 meters) long and may have been one of the fiercest ...

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

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

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.

Mighty meat-eating dinosaurs like Tyrannosaurus rex had tiny arms because they used their powerful heads as the primary ...

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 ...

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 ...