Humboldt's Night Monkey

Kingdom Order Family Genus Species
Animalia Primates Aotidae Aotus Aotus trivirgatus
Humboldt's Night Monkey
IUCN Status: Least-Concern
  • Common Names: Humboldt’s Night Monkey, Northern Owl Monkey, and Northern Night Monkey
  • Taxonomy Classification Year: 1812
  • Monkey Size: 24 to 47 cm (9.45 to 18.5 in)
  • Skin Color(s): Black
  • Habitat: Forest, rainforest
  • Diet: Omnivorous
  • Native Countries: Venezuela, Brazil

Humboldt’s Night Monkey Distribution

Humboldt’s Night Monkey Characteristics

Humboldt's Night Monkey

The three-striped night monkey[1] (Aotus trivirgatus), also known as the northern owl monkey, Humboldt’s Night Monkey, or northern night monkey, is one of several currently recognized species of owl monkeys.

Northern Night Monkey

  • Male and female species are similar in size, with a body length of 24-47 cm. However, the length of the tail varies from 22 to 42 cm.
  • Coat colors range from gray, grizzled brown, reddish, and whitish to the orange underbelly.
  • Coat color varies from one geographic location to another. For this reason, in part, the three-striped night monkey is often classified by different researchers into many different species or subspecies.
  • Humboldt’s night monkeys also have large orange/brown eyes. Distinctive facial features include a triangular black patch between the eyes and black stripes down the sides framing his white face.

Humboldt’s Night Monkey Facts

Northern Owl Monkey

  • Three-striped night monkey is the only nocturnal primate in the Neotropics.
  • These primates have the largest olfactory bulbs and accessory olfactory bulbs of any New World monkey, possibly due to their dependence on scents during nocturnal activities.
  • The three-striped night monkey forms pair bonds that are only broken with the death of one of the members.
  • These New-World Monkeys live in family groups, with the immature young staying with their parents until they reach sexual maturity at three or four years old.
  • They are territorial animals with a home range of about 9 hectares. They defend these territories, and aggression ensues when neighboring groups meet at the borders of the territories.

Suggested Reading: All Monkey Species

Cite This Page

APA7MLA8Chicago (2024, February 21). Humboldt’s Night Monkey. Bio Explorer. "Humboldt’s Night Monkey" Bio Explorer, 21 February 2024, "Humboldt’s Night Monkey" Bio Explorer, February 21 2024.
Key References
  • [1]“ADW: Aotus trivirgatus: INFORMATION”. Accessed September 24, 2022. Link.


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