Anatomy, Physiology and Morphology
The even-toed ungulates stand on an even number of toes; the group's four suborders differ in other characteristics. Suina (pigs and peccaries) have retained four toes of fairly equal size, have simpler molars, short legs, and often have enlarged canine teeth that form tusks. Camelids and Ruminantia tend to be longer-legged, to walk on only the two central toes (though the outer two may survive as rarely-used dew-claws) and to have more complex cheek teeth well-suited to grinding up tough grasses.
Read more about this topic: Even-toed Ungulate
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