“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 ...

Scientists figured out that the predators were lumped in with a previously named mosasaur species. The new one, called ...

Just when you thought it was safe to go back in the water, scientists have discovered a giant, bus-size sea predator that was ...

For decades, the disproportionately small forelimbs of Tyrannosaurus rex have been one of paleontology’s ...

"It's a case of 'use it or lose it.'" ...

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

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

There's a new T. rex in the fossil record, only this one terrorized the ancient seas. New research led by scientists at the ...

We all know about the dinosaur called the Tyrannosaurus rex, also known as the T. rex, which is famous for its large head and ...

At least five groups of two-legged, mostly meat-eating theropod dinosaurs experienced a shortening of the upper arms over the ...

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