A new study suggests Tyrannosaurus rex’s tiny arms were the evolutionary price of developing a gigantic head and a devastating bite.

A new study published by The Royal Society reveals the disproportionate arms of a T. rex can be linked directly to evolution.

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

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. What did the T. rex use its little arms for? – ...

Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the continents more than 70 million years ago, according to a new study led by UCL ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The closest known relative of the infamous Tyrannosaurus rex has been ...

Discover the “Dragon Prince,” a newly identified tyrannosaur ancestor from Mongolia that fills a key gap in T. rex evolution. Learn how this 86-million-year-old dinosaur reshaped our understanding of ...

The new animal, based on a single fossil smuggled out of China and eventually sold to a private collector, has been named Raptorex-- which means "king raptor." It lived 125 million years ago in a lake ...