Howler Monkeys and Spider Monkeys: Atelidae

Atelids are found in Mexico, all of Central America (Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, and Panama), and South America (including Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, and Venezuela).

Howler monkeys and muriquis inhabit secondary forests with open canopies. Spider and woolly monkeys prefer full-canopied primary forests, although spider monkeys are also found in semideciduous and secondary forests.

Howler monkeys prefer leaves, while other atelids favor ripe fruits. All diets are supplemented with flowers, seeds, and insects.