Aerosteon charges at him, but Agro is ready and charges at his opponent. Once he is close enough, he ducks down and his body collides with the Aerosteon. As he quickly recovers from the collision, he lunges and his jaws clamp onto the upper part of the allosaurid's left arm. Unlike the teeth of theropods like Tyrannosaurus and Ceratosaurus, the teeth of Agro are designed to grip and hold prey in the jaws. This makes the bite of an abelisaurid like Agro very dangerous if they manage to bite down on neck, but Agro has the upper arm, so its not as lethal...although it does cause pain.