Anatomy
The anatomy of the Suina differs from other even-toed ungulates. For example, they have maxillary (upper) teeth in front, which allow for the proper chewing of food. In contrast, other even-toed ungulates, such as goats and deer, have front teeth only on the bottom; this doesn't let them chew very well, thus they swallow and regurgitate their food to allow rumination.
Most even-toed ungulates have a four-chambered stomach. In contrast, the Suina have a simple stomach that allows an omnivorous diet.
Most members of Suina have toes rather than hooves. While most artiodactyls have long slender legs, the Suina generally have short, stubby legs.
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