Acinonyx is a genus of mammals from the family Felidae. It is currently distributed in Africa and Asia, but at one time was also present in Europe. The cheetah is the only living species in the genus. Wozencraft (1993) put the genus Acinonyx in their own monophyletic subfamily, Acinonychinae. Salles (1992), Johnson & O'Brien (1997), Bininda-Emonds et al. (1999), and Mattern and McLennan (2000) consider Acinonyx, Puma concolor, and Puma (= Herpailurus) yagouaroundi as representatives of closely related sister groups.
The Serengeti National Park is a Tanzanian national park in the Serengeti ecosystem in Mara Region. It is famous for its annual migration of over 1.5 million white bearded (or brindled) wildebeest and 250,000 zebra and for its numerous Nile crocodile.