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Myomorpha:
Suborder Myomorpha contains nearly a quarter of all mammal species. These are mainly mouse-like rodents, including gerbils, rats, mice and voles. They are grouped according to the structure of the jaw and the structure of molar teeth: Both their medial and lateral masseter muscles are displaced forward, making them adept at gnawing. The medial masseter muscle goes through the eye socket, a feature unique among mammals. |
