Warthogs take feeding seriously. They have developed an interesting practice of kneeling on their calloused, hairy, padded knees to eat short grass. The warthog will also use its snout and tusks to dig for bulbs, tubers, and roots during the dry season. During the wet season, they may eat earthworms and other small invertebrates.
Warthogs are members of the same family as domestic pigs, but present a much different appearance. These sturdy hogs are not among the world's most aesthetically pleasing animals—their large, flat heads are covered with "warts," which are actually protective bumps. Warthogs also sport four sharp tusks. They are mostly bald, but they do have some sparse hair and a thicker mane on their backs.