The Gray-handed Night Monkey (Aotus griseimembra) is a species of night monkey formerly considered a subspecies of Gray-bellied night monkey of the family Aotidae. Its range consists of parts of Colombia and Venezuela. The gray-handed night monkey is arboreal and nocturnal. It and the other members of the genus Aotus are the only nocturnal monkeys. Laboratory experiments indicated lower levels of activity even in lighting conditions consistent with a full moon. It is found in several types of forest, including secondary forest and coffee plantations, although one study indicated a preference for highly diverse forest. It lives in small groups of between two and six monkeys, most typically two to four, consisting of an adult pair and one infant and several juveniles and/or subadults. Groups are territorial, and groups occupy ranges that overlap only slightly. One study found a population density of 1.5 monkeys per square kilometer, while another found a density of 150 monkeys per square kilometer. The latter figure occurred in a forest remnant that had served as a refuge, which may account for the extremely high density.
- Conservation Status : Vulnerable
- Habitat : Forests
- Class: Mammalia
- Order: Primates
- Family: Aotidae
- Genus: Aotus
Diet
It feeds on leaves, fruits, eggs, birds and small invertebrates.
Colors
The fur on the back ranges from grayish brown to reddish brown. The belly is yellowish. The hair on the back of the hands and feet is the color of light coffee with darker hair tips, a key distinguishing feature from other A. lemurinus subspecies.
Fun Facts
Is a relatively small monkey, with males weighing approximately 1,009 grams (35.6 oz) and females weighing about 923 grams (32.6 oz). It has short, tight fur.
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