Portrait of a monkey, Johannesburg, South Africa, Africa

Monkey Reserve, Johannesburg, South Africa, Africa

Common Squirrel Monkey (Saimiri sciureus), South America

Black-capped squirrel monkey (Saimiri boliviensis), portrait, found in Brazil and Bolivia, captive, Germany, Europe

White-faced Capuchin (Cebus capucinus), adult sitting on palm tree, Manuel Antonio National Park, Costa Rica, Central America

White-headed Capuchin (Cebus capucinus) in a national park, Parque Nacional Cahuita on the Caribbean coast, Caribbean, Costa Rica, Central America

Central American Squirrel Monkey (Saimiri oerstedii), Costa Rica, Central America

Central American Squirrel Monkey, also called Mono Titi (Saimiri oerstedii), highly endangered species, in the secondary rain forest, Punta Burica, Golfo de Chiriqui, Panama, Central America

White-faced Capuchin (Cebus imitator), Lake Gatun, Panama

White-faced Capuchin (Cebus imitator), female with infant, Lake Gatun, Panama

Panamian White-faced Capuchin;Cebus imitator) on a branch, Jaco, Costa Rica.