It is the genus for the night monkeys in Nyctipithecidae
The name means "earless" in both cases: the monkey is missing external ears, and the pea is missing earlike bracteoles.
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Aotus is found in most of northern South America from Panama to northern Argentina and from the Pacific in Ecuador and Colombia to the Atlantic in Brazil (Robinson et al., 1987).
Aotus is found in regions with extremes in temperatures, particularly in the subtropical dry forests of the Chaco of Paraguay where daily temperatures can range from 40° C down to -5°C (Wright, 1995).
Gestation and interbirth intervals of the owl monkey (Aotus trivirgatus griseimembra).
Aotus is usually reported as a highly monogamous primate.
Aotus is a relatively noisy monkey, uttering loud contact and locomotory notes (Moynihan, 1976).
Olfaction is an important component of communication and Aotus marks substrates by rubbing a gland at the base of its tail and exuding a brown, oily substance (Wright, 1981).
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Contact