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1. en.wikipedia.org › wiki › Night_monkeyNight monkey - Wikipedia

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   Night monkeys, also known as owl monkeys or douroucoulis[2] (/ duːruːˈkuːliz /), are nocturnal New World monkeys of the genus Aotus, the only member of the family Aotidae (/ eɪˈɒtɪdiː /).

2. www.tropicalconservationfund.org › nightmonkeysLife History and Ecological Adaptations of Night Monkeys ...

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   The evolutionary history of night monkeys (genus Aotus) is deeply rooted in the New World monkey lineage (Platyrrhini). They diverged from other New World monkeys around ~18.5 million years ago (Helenbrook 2024).

3. neprimateconservancy.org › night-monkeysNight Monkeys | New England Primate Conservancy

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   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. Its range is limited by geographical barriers: the…

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4. neprimateconservancy.org › spixs-night-monkeySpix’s Night Monkey, Aotus vociferans | New England Primate ...

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   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.

5. www.iflscience.com › meet-the-owl-monkey-theMeet The Owl Monkey: The World’s Only Nocturnal Monkey ...

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   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...

6. animaldiversity.org › accounts › AotidaeADW: Aotidae: INFORMATION

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   A captive night monkey was reported to use as many as 50 different kinds of vocalizations. Calls in the night are described as squeaks, hisses, and barks and the throat sac can be inflated to add resonance to calls.

7. People also ask

   How many owl monkeys are there in the genus Aotus?

   • The taxonomy of the genus Aotus, whose members are collectively referred to as the night or owl monkeys, is a matter of debate. Prior to 1983, the genus contained just one species (Aotus trivirgatus), with its ten subspecies being elevated to species level after genetic analysis.

   Spix’s Night Monkey, Aotus vociferans

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   Are owl monkeys unfaithful?

   • "Owl monkeys are one of the few mammals where we have absolutely no evidence of unfaithfulness; there’s not a single genetic data point that suggests that males and females in pair relationships – who sleep together, feed together, move together – are not exclusively mating with each other," continued Fernandez-Duque.

   Meet The Owl Monkey: The World’s Only Nocturnal Monkey Species

   www.iflscience.com/meet-the-owl-monkey-the-worlds-only-nocturnal-monkey-species-73369

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   Do owl monkeys cheat?

   • Owl monkeys have incredibly tight social bonds and have never been found to cheat on their partners. Owl monkeys weigh roughly 1 kilogram (2.2 pounds) and have thick gray fur across most of their bodies with orange fur over their chests and bellies, depending on the species.

   Meet The Owl Monkey: The World’s Only Nocturnal Monkey Species

   www.iflscience.com/meet-the-owl-monkey-the-worlds-only-nocturnal-monkey-species-73369

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   Do Aotus trivirgatus have a hoot?

   • Since calls are not common among Aotus trivirgatus, a hoot usually indicates a lone male or female looking for a mate. Copulations generally take place at night, though they have been observed in the day. Females give birth to only one offspring each year and rarely twins. Infants are large and precocial at birth.

   ADW: Aotus trivirgatus: INFORMATION

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   What does Aotus trivirgatus look like?

   • Aotus trivirgatus is found to prefer large canopied fruit trees. (Baer et al. 1994) Both males and females of Aotus trivirgatus are similar in size with a body length of 24 to 47 cm. Tail length ranges from 22 to 42 cm. Coats range from grizzled brown, gray or reddish backs and off white to orange undersides.

   ADW: Aotus trivirgatus: INFORMATION

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   Do owl monkeys have a father?

   • Owl monkey fathers are heavily involved in the raising of the offspring, and actively guard their females against other males mating with them, according to a 2010 study.

   Meet The Owl Monkey: The World’s Only Nocturnal Monkey Species

   www.iflscience.com/meet-the-owl-monkey-the-worlds-only-nocturnal-monkey-species-73369

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8. animaldiversity.org › accounts › Aotus_trivirgatusADW: Aotus trivirgatus: INFORMATION

   animaldiversity.org › accounts › Aotus_trivirgatus

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   Aotus trivirgatus are being threaten by extensive deforestation of the tropical rainforests of South America. They are sensitive to clear cutting as well as selective deforestation, because this limits the diversity of diets within each group's limited territory.