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Green monkey[1]
Female with juvenile, Gambia
Conservation status
Least Concern (IUCN 3.1)[2]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Primates
Family:	Cercopithecidae
Genus:	Chlorocebus
Species:	C. sabaeus
Binomial name
Chlorocebus sabaeus (Linnaeus, 1766)
Geographic range

The green monkey (Chlorocebus sabaeus), also known as the sabaeus monkey,^[3] is an Old World monkey with golden-green fur and pale hands and feet.^[4] The tip of the tail is golden yellow as are the backs of the thighs and cheek whiskers.^[4] It does not have a distinguishing band of fur on the brow, like other Chlorocebus species, and males have a pale blue scrotum.^[4] Some authorities consider this and all of the members of the genus Chlorocebus to be a single widespread species, C. aethiops.

The green monkey is a sexually dimorphic species, with males typically being slightly larger than females. Wild adult males weigh between 3.9 and 8.0 kg (8.6 and 17.6 lb) and measure between 420 and 600 mm (1.38 and 1.97 ft), while the females usually weigh between 3.4 and 5.3 kg (7.5 and 11.7 lb) and measure between 300 and 495 mm (0.984 and 1.624 ft).^[4]

The green monkey can be found in a wide range of wooded habitats, ranging from very dry Sahel woodland to the edge of rainforests. It is also commonly seen in coastal regions, where known to feed on seashore foods such as crabs.^[3] It also takes a wide variety of other foods, including fruits and invertebrates.^[3]

The green monkey is found in West Africa from Senegal and The Gambia to the Volta River. An insular population can be found on the Bijagós Islands in Guinea-Bissau.^[5] It has been introduced to the Cape Verde islands off north-western Africa (islands of Santiago and Brava only) as early as the second half of the 16th century,^[6] and the West Indian islands of Saint Kitts, Nevis, Saint Martin, and Barbados,^[1] having been introduced in the late 17th century by slave ships coming from West Africa.^[4] A small colony descended from 20th century zoo escapees exists in Broward County, Florida.^[7]

As other members of the genus Chlorocebus, the green monkey is highly social and usually seen in groups. They usually live in groups of 7 up to 80 individuals. Within these groups, there is distinct social hierarchy evidenced by grooming behaviors and gender relationships.

Green monkeys are known to communicate both verbally and non-verbally. They have distinct calls which they use to warn others in the group of predators, and even have specific calls for specific predators. Body language, such as the display of brightly colored genitalia, is also used to communicate danger, but can also be used as a way of establishing dominance. It has also been documented that green monkeys may use facial expressions to express their emotional state.^[8]

• 
  Male
• 
  The Gambia
• 
  Male, Senegal
• 
  Young adult, The Gambia
• 
  Male, Senegal
• 

In West Africa, leopards, martial eagles, and pythons (Python) are primary predators of green monkeys. In the Caribbean and the West Indies, humans are the only documented predators.^[9]In Fongoli, Senegal, male Western chimpanzees are observed to prey more on green monkeys.^[10]

Wikimedia Commons has media related to Green monkey.

• View the chlSab2 genome assembly in the UCSC Genome Browser