The wildebeest (plural wildebeest, wildebeests or wildebai), also called the gnu is anantelope of the genus Connochaetes. It is a hooved (ungulate) mammal. Wildebeest is Dutch for "wild beast" or "wild cattle" in Afrikaans(beest = cattle), while Connochaetes derives from the Greek words konnos ("beard") and khaite ("flowing hair").
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). Gnus belong to the family Bovidae, which includes antelopes, cattle, goats, and other even-toed horned ungulates.