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1. • Night monkeys

     

     michaelnoonanphotography.com

     • The genus comprises eleven species which are found across Panama and much of South America in primary and secondary forests, tropical rainforests and cloud forests up to 2,400 metres (7,900 ft). Night monkeys have large eyes which improve their vision at night, while their ears are mostly hidden, giving them their name Aotus, meaning "earless".
     en.wikipedia.org/wiki/Night_monkey

     Night monkey - Wikipedia

2. People also ask

   What genus is Aotus?

   • With regard to suprageneric classification, the exact placement of the genus Aotus within the Pitheciidae, Atelidae, or Cebidae has been disputed. The classification of the genus at the family level requires consideration of extinct taxa; still, the nature of the earliest known forms of owl monkeys is still debated.

   Morphology, Systematics, and Taxonomy of Owl Monkeys

   link.springer.com/chapter/10.1007/978-3-031-13555-2_1

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   Where did the name Aotus come from?

   • The small and inconspicuous ears (pinnae) give origin to the genus name “Aotus,” which derives from the Ancient Greek a, meaning “without,” and otis, meaning “ear.” (Copyright: Claudia Valeggia/Owl Monkey Project, Formosa-Argentina)

   Morphology, Systematics, and Taxonomy of Owl Monkeys

   link.springer.com/chapter/10.1007/978-3-031-13555-2_1

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   Is Aotus a sibling species?

   • Aotus is a sibling species complex, making it difficult for researchers to distinguish species based on external phenotype. The early division of the genus into nine species organized into two groups based on their karyotypes, coloration of the neck, and their susceptibility to malaria has been refuted by several phylogenetic studies.

   Morphology, Systematics, and Taxonomy of Owl Monkeys

   link.springer.com/chapter/10.1007/978-3-031-13555-2_1

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   How many Aotus species are there?

   • We accept 11 Aotus species here as other researchers have done when evaluating their geographic distribution (Shanee et al. 2023 this volume). They are the following: A. azarae, A. nigriceps, A. trivirgatus, A. vociferans, A. nancymaae, A. brumbacki, A. griseimembra, A. miconax, A. lemurinus, A. zonalis, and A. jorgehernandezi.

   Morphology, Systematics, and Taxonomy of Owl Monkeys

   link.springer.com/chapter/10.1007/978-3-031-13555-2_1

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   What are the two groups of Aotus?

   • He split Aotus into two groups: a northern, gray-necked group (A. lemurinus, A. hershkovitzi, A. trivirgatus and A. vociferans) and a southern, red-necked group (A. miconax, A. nancymaae, A. nigriceps and A. azarae).

   Night monkey - Wikipedia

   en.wikipedia.org/wiki/Night_monkey

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   Are Aotus endangered?

   • Aotus species are includes in CITES Appendix II and are considered "least concern" for extinction by the IUCN, with the exception of A. lemurinus and A. miconax, which are considered vulnerable. (International Union for the Conservation of Nature, 2007)

   ADW: Aotidae: INFORMATION

   animaldiversity.org/accounts/Aotidae/

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

   en.wikipedia.org › wiki › Night_monkey

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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 /).

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

   animaldiversity.org › accounts › Aotidae

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   The genus Aotus is the second most widely distributed New World monkey genus, with howler monkeys being more widely distributed. ( Cawthon Lang and Fernandez-Duque, 2005 ; Martin, 2004 ; Nowak, 1991 )

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

   neprimateconservancy.org › night-monkeys

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   GRAY-HANDED NIGHT MONKEY. Aotus griseimembra. CONSERVATION STATUS: VULNERABLE. Gray-handed night monkeys, also 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.

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6. www.sciencedirect.com › aotusAotus - an overview | ScienceDirect Topics

   www.sciencedirect.com › aotus

   The Aotus genus appears to have evolved from a diurnal ancestor because the eyes retain vestigial features characteristic of diurnal vision, such as a retinal fovea. The eyes are large and globelike with a more spherical lens than found in diurnal monkeys.

7. link.springer.com › chapter › 10Aotus : A Model to Synthesize Studies of Captive and Wild ...

   link.springer.com › chapter › 10

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   Sep 14, 2023 · Aotus spp. serves as a remarkable nonhuman primate model, and researchers are particularly well-suited to integrate data from captivity and the field, due in great part to the extensive and well-habituated populations of owl monkeys at the DuMond Conservancy, OMBRR, and the Owl Monkey Project.

8. link.springer.com › chapter › 10Morphology, Systematics, and Taxonomy of Owl Monkeys - Springer

   link.springer.com › chapter › 10

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   Sep 14, 2023 · Owl monkeys, genus Aotus, are distributed from Panama to the northeast of Argentina and from the highlands of the Andes to the Atlantic coast. They are relatively small arboreal platyrrhines (0.7–1.5 kg) that show no conspicuous sexual dimorphism in body...

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

   www.tropicalconservationfund.org › nightmonkeys

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   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.