Wildebeest Wildebeest Wildebeests, also called gnus, are antelopes in the genus Connochaetes. They belong to the family Bovidae, which includes antelopes, cattle, goats, sheep, and other even-toed horned ungulates. "Connochaetes" includes two species, both native to Africa: the black wildebeest or white-tailed gnu ("C. gnou"), and the blue wildebeest or brindled gnu ("C. taurinus"). Fossil records suggest these two species diverged about one million years ago, resulting in a northern and a southern species. The blue wildebeest remained in its original range and changed very little from the ancestral species, while the black wildebeest changed more in order to adapt to
Black wildebeest in the 1800s. The black wildebeest is currently included in the same genus as the blue wildebeest ("Connochaetes taurinus"). This has not always been the case, and at one time the latter was placed under a separate genus of its own, "Gorgon". The black wildebeest lineage seems to have diverged from the blue wildebeest in the mid- to late Pleistocene, and became a distinct species around a million years ago. This evolution is quite recent on a geologic time scale. Features necessary for defending a territory, such as the horns and broad-based skull of the modern black wildebeest, have been