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CONSERVATION STATUS: LEAST CONCERN. Azara’s night monkeys, also called Azara’s owl monkeys and southern night monkeys, are endemic to the Gran Chaco region of South America—a large area including many diverse ecosystems, from grasslands to savannas to xeric thorn forests and gallery forests.
- Colombian Night Monkey
Colombian night monkeys can weigh up to 2.86 pounds (1.3...
- Northern Night Monkey
There is some speculation, however, around whether or not...
- Panamanian Night Monkey
Panamanian night monkeys are one of a few species of...
- Nancy Ma's Night Monkey
Similar to other night monkeys, this species averages a...
- Black-Headed Night Monkey
Similar to other night monkeys, black-headed night monkeys...
- Azara's Night Monkey, Aotus Azarae
Although Azara’s night monkeys are listed as Least Concern...
- Spix's Night Monkey, Aotus Vociferans
Today, there are two groups of night monkeys: the...
- Andean Night Monkey
Andean night monkeys are part of the Aotus genus, commonly...
- Colombian Night Monkey
Night monkeys, also known as owl monkeys or douroucoulis [2] (/ d uː r uː ˈ k uː l i z /), are nocturnal New World monkeys of the genus Aotus, the only member of the family Aotidae (/ eɪ ˈ ɒ t ɪ d iː /). The genus comprises eleven species which are found across Panama and much of South America in primary and secondary forests, tropical ...
Nov 18, 2022 · Ten night monkeys (Aotus lemurinus, five males and five females, age = 23.8 ± 6.8 y.o, body weight = 1.08 ± 0.08 kg) were used in this study. All animals were provided by the Center for the Evolutionary Origins of Human Behavior (former Primate Research Institute), Kyoto University (Inuyama, Japan).
Today, there are two groups of night monkeys: the gray-necked owl monkeys, which include Spix’s night monkey and live north of the Amazon River, and the red-necked night monkeys, which live south of the Amazon River.
The Aotidae family, commonly known as night monkeys or owl monkeys, holds a special place in the primate world as the only truly nocturnal New World monkeys. For a broader look at different types of monkeys, explore our monkey guide.
Night monkeys (Aotus), also known as owl monkeys, are New World primates found across Central and South America, ranging from Panama to northern Argentina. Belonging to the family Aotidae, they are characterized by their nocturnal lifestyle and distinctive owl-like appearance.
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May 1, 2022 · The number of species in the genus varies from one to nine, depending on the author, and there are at least 18 known karyotypes, varying from 2n = 46 to 2n = 58. Historically, night monkeys are divided into two species groups: red- and grey-necked groups from south and north of the Amazon-Solimões River, respectively.
