It's anyone's guess how T. rex moved its puny arms, but now research on turkey wings and alligator arms is shedding light on the issue. Credit: Langel/Bonnan, Stockton University O’Reilly on Trump ...

A Royal Society research paper published May 20 suggests that T. rex, which averaged more than 40 feet long with arms stretching just 3 feet, naturally evolved smaller arms as its skull grew larger.

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 Escher Walcott is a Writer/Reporter at PEOPLE, covering stories in ...

Scientists may have finally solved the riddle of Tyrannosaurus rex's small arms, which have always stood out as the oddest feature in the mightiest of dinosaurs, prompting jokes and a century-plus ...

(CNN) - Scientists may have finally solved the mystery of why Tyrannosaurus rex had such tiny arms. T. rexes were 40 feet long and had a bite three times more powerful than that of a lion, according ...