T. Rex's Puny Arms More Useful Than We Thought

ALBUQUERQUE, N.M. — Tyrannosaurus rex and other meat-eating dinosaurs are often mocked for their laughably puny arms, but new research indicates that these fearsome predators could do a lot more with these little limbs than previously realized.
By studying the arm movements of two distant relatives of T. rex — the domestic turkey (Meleagris gallopavo) and the American alligator (Alligator mississippiensis) — researchers have learned that T. rex and other theropods (a group of mostly meat-eating, bipedal dinosaurs) could likely turn the palms of their hands toward their chests.