In the Late Jurassic, predators like Allosaurus roamed the land, but few dared to challenge Diplodocus. With a whip-like tail possibly capable of breaking the sound barrier, this herbivore transformed ...

(CNN) — Diplodocids were a family of dinosaurs with long necks and, often, even longer tails — some species' tails reached 50 feet in length. They were wide-ranging, but especially flourished in ...