White-faced Capuchin monkey (Cebus capucinus), Curu Wildlife Reserve, Costa Rica, Central America

White-faced capuchin monkey (Cebus capucinus) in rainforest, Manuel Antonio National Park, Puntarenas Province, Costa Rica, Central America

White-faced capuchin monkey (Cebus capucinus) in rainforest, Manuel Antonio National Park, Puntarenas Province, Costa Rica, Central America

Male tufted capuchin (Cebus apella) (brown capuchin) (black-capped capuchin), Mato Grosso do Sul, Brazil, South America

Tufted capuchin (Cebus apella) (brown capuchin) (black-capped capuchin) in a palm tree, Mato Grosso do Sul, Brazil, South America

Adult black capuchin (Sapajus nigritus) head detail, Iguazu Falls National Park, Misiones, Argentina, South America

White-headed capuchin (Cebus imitator), Arenal Volcano National Park, near La Fortuna, Alajuela Province, Costa Rica, Central America

White-faced Capuchin (Cebus capucinus) by Manuel Antonio Beach, Manuel Antonio National Park, Costa Rica, Central America

An adult black capuchin monkey (Sapajus nigritus), near the trail at Iguacu Falls, Misiones Province, Argentina, South America

An adult black capuchin monkey (Sapajus nigritus) with youngster on its back at Iguacu Falls, Misiones Province, Argentina, South America

Adult black capuchin (Sapajus nigritus) head detail, Iguazu Falls National Park, Misiones, Argentina, South America