Which is the only pig species that has adapted to grazing and savanna habitats?

The common warthog ('Phacochoerus africanus') is a wild member of the pig family (Suidae) found in grassland, savanna, and woodland in sub-Saharan Africa. In the past, it was commonly treated as a subspecies of 'P. aethiopicus', but today that scientific name is restricted to the desert warthog of northern Kenya, Somalia, and eastern Ethiopia.

The common warthog is the only pig species that has adapted to grazing and savanna habitats. Its diet is omnivorous, composed of grasses, roots, berries and other fruits, bark, fungi, insects, eggs and carrion. Although capable of fighting the common warthog's primary defense is to flee by means of fast sprinting. The common warthog's main predators are humans, lions, leopards, cheetahs, crocodiles, wild dogs and hyenas