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Azara's night monkey (Aotus azarae), also known as the southern night monkey, is a night monkey species from South America. It is found in Argentina, Bolivia, Brazil, Peru and Paraguay. [2] The species is monogamous, with the males providing a large amount of parental care. It is named after Spanish naturalist Félix de Azara.
There is little data on the weights of wild night monkeys. From the figures that have been collected, it appears that males and females are similar in weight; the heaviest species is Azara's night monkey at around 1,254 grams (2.765 lb), and the lightest is Brumback's night monkey, which weighs between 455 and 875 grams (1.003 and 1.929 lb ...
Azara's night monkeys are another species that proved to be monogamous. In an 18-year study conducted by the University of Pennsylvania, these monkeys proved to be entirely monogamous, exhibiting no genetic information or visual information that could lead to the assumption that extra pair copulation was occurring.
All South American monkeys are believed to be descended from ancestors that rafted over from Africa about 25 million years ago in a single dispersal event. Suborder: Haplorrhini. Infraorder: Simiiformes. Parvorder: Platyrrhini (New World monkeys) Family: Aotidae (night monkeys) Genus: Aotus. Azara's night monkey, Aotus azarae LC
The three-striped night monkey (Aotus trivirgatus), also known as northern night monkey or northern owl monkey, is one of several species of owl monkeys currently recognised. It is found in Venezuela and north-central Brazil. Until 1983, all the owl monkeys were regarded as subspecies of Aotus trivirgatus, and all were referred to as douroucoulis.
Owl monkeys (Aotus) live in small groups of up to five individuals, usually a male and female and their offspring. Both parents look after the children. [ 150 ] Freeman, Sullivan, Hopper, Talbot, Holmes, Schultz-Darken, Williams, and Brosnan tested three different monkey species, including owl monkeys, in a variation of Brosnan and de Waal's ...
Organisms with monochromacy are called monochromats. Many mammals, such as cetaceans, the owl monkey and the Australian sea lion are monochromats. In humans, monochromacy is one among several other symptoms of severe inherited or acquired diseases, including achromatopsia or blue cone monochromacy, together affecting about 1 in 30,000 people.
The black-headed night monkey (Aotus nigriceps) is a night monkey species from South America.It is found in Brazil, Bolivia and Peru. [2] The A. nigriceps in Peru were notably inhabiting areas that were degraded, and often these areas were disturbed either by human activities or natural occurrences in the ecosystem. [3]