Natural selection has closely matched. the structure of animal mouthparts to their function in obtaining food
Ex. Most mammals chew their food and swallow distinct packets
(a) The sharp teeth of mountain lions stab and slice prey
(b) Is one example of the many tooth shapes that evolved from the relatively simple and uniform teeth in the common ancestor of all mammals
2) Diversification of tooth shape has allowed mammals to exploit a wide range of foods
Ex. Snakes have a flexible skull that allows them to ingest prey without chewing or biting off pieces
