Brontosaurus

Sturdy skeletons support the great hulk of the Brontosaurus. Stocky legs with incredibly dense limb bones support the creature’s mass. Capable of running only for short bursts when threatened, they are not built for sprinting and, being so heavy, will tire quickly. The teeth are short and stubby, designed for tearing off pieces of vegetation. Stones in the gizzard aid digestion of foliage that is bulk-loaded and swallowed without being chewed.