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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 ...
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.
There are eight species of night monkeys, also commonly called douroucoulis or owl monkeys, found from Panama to Peru, Bolivia, and northeastern Argentina. Douroucoulis are the only nocturnal monkeys in the New World.
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.
Northern night monkeys—also known as northern owl monkeys, three-striped night monkeys, or douroucoulis—are found north of the Amazon River, primarily between southern Venezuela and north-central Brazil.
It is now widely accepted that there are between five and nine night monkey species, and eight species can be recognized as a basic minimum. Night monkeys provide a graphic example of a persistent failure to recognize cryptic species among nocturnal primates, because they differ relatively little in visually obvious characters.
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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.
