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

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 ...

A Royal Society research paper published May 20 suggests that T. rex, which averaged more than 40 feet long with arms ...

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

It’s massive, it’s fearsome, and it’s about to make a dent on the auction block. Come July, a Tyrannosaurus rex fossil is making its way to Sotheby’s New York, with a colossal estimate to match. The ...

A new study explores the reason why the dinosaur T. rex has tiny arms.

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

Scientists figured out that the predators were lumped in with a previously named mosasaur species. The new one, called Tylosaurus rex, could grow to 43 feet long, about the length of a school bus ...

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

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