NIGHT MONKEYS

The night monkey genus, Aotus, includes at least eleven species and three subspecies.

Aotus miconax

CONSERVATION STATUS: ENDANGERED

Andean night monkeys, also known as Peruvian night monkeys, are endemic to the South American country of Peru, in the Andes Mountains. They are found between elevations of 2,600 to 10,200 feet (800–3,100 meters) in the humid cloud forests of the mountains. In some cases, Andean night monkeys are able to live in…

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Aotus azarae

CONSERVATION STATUS: LEAST CONCERN

Azara’s night monkeys, also known as the southern night monkey or Azara’s owl monkey, inhabit the Gran Chaco region of South America, characterized by dry forests, savannas, and scrublands. Their range extends across several countries, including Argentina, Bolivia, Paraguay, and parts of Brazil, particularly in the…

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Aotus nigriceps

CONSERVATION STATUS: LEAST CONCERN

Black-headed night monkeys are native to neotropical South America. They are found in areas of the Amazonian and Madeiran forests in Peru, Brazil, and Bolivia. They are also found in several forest areas near river basins such as Huallaga, Ucayali, Yavari, Purus, and Madre de Dios. Black-headed night monkeys prefer…

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Aotus lemurinus

CONSERVATION STATUS: VULNERABLE

The Colombian night monkey, also known as the gray-bellied monkey, the gray-necked monkey, the lemurine night monkey, and the lemurine owl monkey, is native to South and Central America. This monkey’s territory ranges from Ecuador and Peru to Guyana and Brazil, and from Panama to northeast Argentina… 

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Aotus griseimembra

CONSERVATION STATUS: VULNERABLE

Gray-handed night monkeysalso referred to as gray-legged douroucouli, lemurine owl monkeys, or gray-legged night monkeys, are a primate species native to the tropical and subtropical regions of Colombia and Venezuela. Between the two countries, the geographical borders of their home range include Colombia’s Sinú…

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Photo courtesy of ©Seig Kopinitz. Used with permission.

Aotus nancymaae

CONSERVATION STATUS: VULNERABLE

The soulful eyes of the Nancy Ma’s night monkey, also called the Ma’s Night Monkey or Peruvian red-necked owl monkeys, peer from the hollow of trees in the Amazonian neotropics of South America. They make their homes in rainforests that range from Northern Peru to Western Brazil. Their exact natural distribution in…

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Aotus trivirgatus

CONSERVATION STATUS: LEAST CONCERN

The northern night monkey is a primate species endemic to southern Venezuela and northern Brazil. This species is also known as the three-striped night monkey and northern owl monkey. Brazil’s Rio Negro, a large tributary of the Amazon River, marks the southwestern edge of this species’ geographic range, while the Rio…

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Photo: Charles J Sharp/Creative Common

Aotus zonalis

CONSERVATION STATUS: NEAR THREATENED

The Panamanian night monkey, also known as the Chocoan night monkey, is a nocturnal primate species native to Panama and the Chocó region of Colombia, which refers to the area of land located on the Pacific coast and the greater Chocó Biogeographic Region. Locally, they are referred to as “martejas”…

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Photo credit: David Larson/Flickr/Creative Common

Aotus vociferans

CONSERVATION STATUS: LEAST CONCERN

The Spix’s night monkey is also known as the noisy night monkey, Colombian gray night monkey, and Spix’s owl monkey. Like all night monkeys, they live in the Americas. Spix’s night monkeys are found primarily north of the Amazon River in an area that includes parts of Brazil, Colombia, Ecuador, and Peru. Their habitat is…

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