(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 ...

Diplodocids – large herbivorous dinosaurs with long necks and tails – may have been able to move their tails like bullwhips at speeds of up to 33 metres per second (more than 100 kilometres per hour), ...

Apatosaurus had a 50-foot-long tail. (National Park Service Illustration / Bob Walters / Tess Kissinger) The dinosaur formerly known as Brontosaurus could certainly do a lot of damage with its long ...