How does the maxillary angle and palate shape relate to the size of each species' mouth?

The maxillary angle, palate shape, and size of each species mouth is a direct correlation to the diet of the specific species. Sharks, for example, have larger mouths and a steeper angle to their teeth because they are the predators in the animal kingdom. The size of the mouth can also be viewed in a perspective that the size of the mouth is a direct correlation to how much energy is needed to stay alive. For example, Sharks must consume greater amounts of food than a mouse to stay alive, and having a larger mouth plays a critical role in survival.