Didactic illustration showing the jaws of animals highlighting their teeth according to the nature of their diet. From left to right, carnivorous mammal jaw (cat) with pointed and long canines and carnivorous teeth back. The temporalis muscle is powerful. and developed .. Below, jaw of mammal herbivorous (horse) with small incisors and molars. It is the masseter muscle which is powerful and developed. In the snake, on the right, the teeth are numerous, small and pointed, and the square bone (in orange) and the elastic ligament (in yellow) allow the amplitude opening of the jaw of the snake that swallows its prey entirely.