The macaques constitute a genus of Old World monkeys of the subfamily Cercopithecinae. Aside from humans, the macaques are
the most widespread primate genus, ranging from northern Africa to Japan. Twenty-two macaque species are currently recognised,
and they include some of the monkeys best known to non-zoologists, such as the Rhesus Macaque (as the Rhesus Monkey), Macaca
mulatta, and the Barbary Macaque (as the Barbary Ape), M. sylvanus, a colony of which lives on the Rock of Gibraltar.