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A primary distinction between red-necked and gray-necked night monkeys is spatial distribution. Gray-necked night monkeys (Aotus lemurinus group) are found north of the Amazon River, while the red-necked group (Aotus azare group) are localized south of the Amazon River. [11]
Night monkeys (Aotus spp.) typically live in small family groups consisting of a monogamous pair and their offspring. These groups are highly cohesive, with strong bonds between members. Both parents are involved in raising the young, exhibiting cooperative breeding behavior.
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.
Mar 13, 2024 · The owl monkeys are a group of 10 species in the genus Aotus, split into two groups. Previously the genus just contained one species with several subspecies, but all have since been elevated to...
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.
First described in 1823 by German naturalist Johann Baptist von Spix, Spix’s night monkey (Aotus vociferans)—also known as the Colombian gray night monkey, noisy night monkey, or Spix’s owl monkey—is found north of the Amazon River in Brazil, Colombia, Ecuador, and Peru.
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The Peruvian night monkey (Aotus miconax), also known as the Andean night monkey, is a nocturnal New World monkey endemic to northern Peru. Adults weigh around 1 kg (2.2 lb) and measure up to 50 cm (20 in) in length.
