The Diplodocus (double-beam dinosaur) was a mighty herbivore. These animals stayed together in herds, much like today’s elephants. It is believed that the Diplodocus could stand upright on its hind legs, either to feed on leaves from the tops of tall trees or for the purpose of mating. It used its tail like a whip to defend itself.

Length: 30 m
Weight: 10-20 t
Period: Upper Jurassic (150-136 mill. years)