A new study of Tyrannosaurus rex's muscular tail suggests that the dinosaur was one of the world's fastest-moving hunters. Subscribe to read this story ad-free Get unlimited access to ad-free articles ...

Animal tails are fascinating appendages that come in a variety of forms and serve a variety of functions. Tails help animals move, communicate, and stay warm. From lowly invertebrates to tropical ...

Get unlimited access to ad-free articles and exclusive content. LiveScience Feathered dinosaurs might have used muscular tails to shake tail feathers and lure the opposite sex, researchers say.

The hunting habits of Spinosaurus aegyptiacus, the largest known predatory dinosaur to roam the Earth, have been subject to intense scientific debate since detailed descriptions of its most complete ...