IUCN Red List status: Near Threatened
For more info on classifications, visit www.iucnredlist.org
Where they live
South America through Argentina, Bolivia, Brazil, Paraguay and Uruguay
Tropical rainforest, tropical dry forest
head-to-body length 50-62 cm, tail length 54 -68 cm
The population is in decline due to the threat of habitat destruction and hunting
Did you know...
- The calls of howler monkeys can be heard by humans up to five kilometres away
- Only males are black, females and babies have yellowish-buff fur
More about howler monkeys...
Howler monkeys are so called because of their amazing howling calls. Calls are very loud due to a special voice box and pouch in the throat that amplifies sound. Both sexes call, but the male’s voice is much louder and deeper. The call enables individuals to keep in touch with their group and, more importantly, lets other groups know where they are.
Howler monkeys usually live in social groups of up to 30 animals, although five to eight is more common. They spend almost all of their time in the tree-tops, rarely venturing to the ground. Much of this time is spent feeding on various sorts of leaves. They are active during the day and make their way through the forest canopy in large slow-moving groups. In the morning, shortly after dawn, all the monkeys in a group take part in a chorus of howling. They prefer to stay away from other groups, although they do not defend a strict territory.
A single youngster is born following a gestation of six months and the baby is carried beneath the mother. Young are weaned at around 18 months, and babies are often reared by more than one female in the group.
How you can help...
Adopt a Monkey (Black Howler)!
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