Triceratopses are muscular quadrupeds with powerful but short legs, thick necks, and heads crowned by a wide, bony frill. Though they bear a large horn on their snout and one on each brow, these dinosaurs are herbivores and use these bony protrusions only to defend themselves from attackers or in dramatic clashes against other triceratopses for grazing territory or mates. Short-tempered and obstinate, triceratopses are unlikely to back down from a fight unless they are hopelessly outmatched, and the creatures are known to fight to the death for no apparent reason beyond stubbornness. Triceratopses often serve as mounts for lizardfolk, orcs, and giants, who ride comfortably behind the dinosaurs' protective bone frills. A triceratops is 30 feet long and weighs as much as 10 tons.