The brown howler is a large, tree-dwelling monkey with a grasping tail. It feeds on leaves, flowers and fruit, and makes loud calls like low grunts or barks.
It has a large, stocky body and a prehensile tail with a bare patch of skin underneath its tip. Fur ranges from brown to dark red or black; the face and ears are dark and hairless.
It lives in trees and feeds mostly on leaves, flowers and fruit. The mix of foods changes with season and location. Its calls can sound like deep grunts or barks.
An extinction-risk assessment has not been added yet.