Suidae is a family of artiodactyl mammals commonly called "pigs", hogs, or boars. In addition to numerous fossil species, up to sixteen extant species are currently recognized, classified into between four and eight genera. The family includes the domestic pig, Sus scrofa domesticus or Sus domesticus, in addition to numerous species of wild pig, such as the babirusa Babyrousa babyrussa and the warthog Phacochoerus aethiopicus. All suids, or swine, are native to the Old World, ranging from Asia and its islands, to Europe, and Africa.