1911 Encyclopædia Britannica/Wart-hog
WART-HOG, the designation of certain hideous African wild swine (see Swine), characterized by the presence of large warty protuberances on the face, the large size of the tusks in both sexes, especially the upper pair, which are larger and stouter than the lower ones and are not worn at the summits, and the complexity and the great size of the last pair of molar teeth in each jaw. The adults have frequently no teeth except those just mentioned, and nearly bare skins; and the young are uniformly coloured. Two nearly allied species are recognized, namely, the southern Phacochoerus aethiopicus, which formerly ranged as far south as the Cape, and the northern P. africanus, which extends to the mountains of Abyssinia, where it has been found at a high elevation. In South and East Africa wart-hogs frequent more or less open country, near water, and dwell in holes, generally those of the aard-vark. In Abyssinia, on the other hand, they spend the day among bushes, or in ravines, feeding at night.