The genus Alouatta, commonly known as howler monkeys, are known for their loud vocalizations, which can carry over 3 miles through dense rainforest. They have a prehensile tail, aiding in arboreal locomotion. Found in Central and South American forests, they primarily feed on leaves and fruits, playing a crucial role in seed dispersion.

Alouatta, commonly known as howler monkeys, are native to Central and South America. They are found across a broad range that includes southern Mexico, through Central America, and into South America, reaching as far south as northern Argentina.

Howler monkeys typically inhabit tropical and subtropical forests, including rainforests, cloud forests, and deciduous forests. They are arboreal, spending most of their time in the canopy of trees. The climate in these regions is generally warm and humid, with abundant rainfall, although some species can adapt to drier environments in more seasonal forests.

Howler monkeys play an essential role in their ecosystems as folivores and frugivores, primarily consuming leaves, fruits, and flowers. Their foraging habits help with seed dispersal, contributing to forest regeneration. They are well known for their loud howls, which can travel over considerable distances, serving as a communication method to maintain territories and social structures.