* Stand on an even number of toes
* weight is borne by the third and fourth toes
* highly-developed stomachs
* browsing and grazing animals
* shape of the astragalus has double-pulley structure
* foot extremely flexible
* larger stomachs and longer intestines than other animals
* found on every continent except Antarctica
* more economic and cultural benefit
* do not inhabitant oceanic islands
* hoofed mammals
* coats have two layers
* glands used for communication
* needs abundant vegetation to survive
* social and live in groups
* equipped with horns or antlers