The grivet (Chlorocebus aethiops ) is an Old World monkey with long white tufts of hair along the sides of its face. Some authorities consider this and all of the members of the genus Chlorocebus to be a single species, Cercopithecus aethiops. As here defined, the grivet is restricted to Ethiopia, Sudan, Djibouti, and Eritrea. In the southern part of its range, it comes into contact with the closely related vervet monkey (C. pygerythrus ) and Bale Mountains vervet (C. djamdjamensis ). Hybridization between them is possible, and may present a threat to the vulnerable Bale Mountains vervet. Unlike that species, the grivet is common and rated as least concern by the IUCN.
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DiurnalDiurnal animals are active during the daytime, with a period of sleeping or other inactivity at night. The timing of activity by an animal depends ...
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OmnivoreAn omnivore is an animal that has the ability to eat and survive on both plant and animal matter. Obtaining energy and nutrients from plant and ani...
Scavengers are animals that consume dead organisms that have died from causes other than predation or have been killed by other predators. While sc...
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
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ArborealArboreal locomotion is the locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some anima...
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ZoochoryZoochory animals are those that can disperse plant seeds in several ways. Seeds can be transported on the outside of vertebrate animals (mostly mam...
Among animals, viviparity is the development of the embryo inside the body of the parent. The term 'viviparity' and its adjective form 'viviparous'...
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Dominance hierarchyA dominance hierarchy (formerly and colloquially called a pecking order) is a type of social hierarchy that arises when members of animal social gr...
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Not a migrantAnimals that do not make seasonal movements and stay in their native home ranges all year round are called not migrants or residents.
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starts withThe grivet is an Old World monkey with long white tufts of hair along the sides of its face. The facial skin, hands, and feet are black. The face has a white line above the eyes. It has long, white whiskers on the cheeks. The fur on the back has an olive color, while the front is white. The skin on the stomach has a blue tint and the fur of this monkey has a bristly feel.
Grivets are found in Sudan east of the White Nile, Eritrea, Ethiopia east to the Rift Valley, and in Djibouti. They inhabit savanna woodlands and need to live around a source of water, especially during the dry season. Grivets are able to adapt to many environments and can also be found in rural and urban areas.
Grivets are most active in the morning and early evening. They stay on the ground most of the day to eat, and at night they sleep in trees. These monkeys spend a lot of time grooming, playing, climbing, and play fighting; all of these things help to ensure their survival. Grivets are very social animals. They form multiple-male groups that are usually of moderate size. In the hierarchy of males, an individual shows his dominance by putting his tail in a stiff, upright position and strolling past lower-ranked males. They travel in packs, and usually move on all fours or quadrupedally, except when using both hands for carrying when they manage to walk and run quite comfortably on two legs. Groups can range from 5 to over 70 individuals.
Grivets are omnivores and eat mostly fruits, vegetables, and sometimes small mammals, insects, and birds. They also scavenge for human food and must drink water daily, especially in the dry seasons.
During the breeding season females typically have a limited number of mates, while males may have several. Each female gives birth to one baby at a time, and gestation usually lasts 2-3 months. When the baby is born, the mother cleans the infant. Young have pink faces and black hair. Around 2 months are needed for them to get their adult coats. The first few months, the infant stays very close to its mother, but after 6 months, the infant is weaned.
Although not endangered, grivets are threatened through the destruction of forests and are occasionally hunted as bushmeat.
The IUCN Red List and other sources don’t provide the number of the grivet total population size. Currently, this species is classified as Least Concern (LC) on the IUCN Red List and its numbers today are stable.
Social animals are those animals that interact highly with other animals, usually of their own species (conspecifics), to the point of having a rec...