The "Allen's swamp monkeys" are a species of baboon native to central Africa. They primarily live in Africa's swamp forests and spend nearly all of the day up in the trees. Bushmeat is often hunted for, stolen from people, and captured for personal use. Its capture by the pet trade has caused a lot of alarm among conservationists who wish to see these animals remain widely available outside of captivity. Allen's Swamp Monkeys have a dark grayish-brown coat and bright orange or red face.

Physical Description

Allen's swamp monkeys are small mammals that can grow up to about two feet. Their fur is brown, gray, and green and has a thickness that is proportional to the length of their neck and shoulder regions. They have longer tails than their bodies.



Adults may reach 18 inches (45.7 cm) in body length with tails over 19 inches (48.2 cm) in length. Males are noticeably larger than females and can exceed 13 pounds (5.9 kg), while females are closer to 7.5 pounds (3.4 kg).

Native Habitat

Allen's swamp monkeys are native to central Africa, primarily concentrated in the lowland forests of the Congo Basin, which includes Cameroon, Congo, and the Democratic Republic of the Congo. Allen's swamp monkeys are found in moist, tropical forests. Their name implies that they may choose a certain habitat near bodies of water.

Allen's swamp monkey has a small rounded head with an oblong body and limbs. Its coat is gray-brown to buff, and its eyes are orange with black pupils. It has a dark band on its cheek, and its tail is ringed white near the base. The Allen's swamp monkey weighs around 7 to 10 pounds. Allen's swamp monkey is a herbivore.

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Physically, Allen's swamp monkey is a small arboreal quadruped with long limbs, short and rounded head and neck; feet are planted on the ground with all five toes nearly touching. The tail has white rings around it. It weighs around 7-10 pounds and has an oblong body with a large stomach. It has small eyes, ears, and nose. The tail is usually used to balance its weight as it moves along branches.

Allen's swamp monkey is a medium-sized arboreal quadruped with short legs and a rounded head and neck; feet are planted on the ground with all five toes nearly touching. The tail has white rings around it. It is covered with brown-grey fur that looks like moss. The swamp monkey's coat is brown on the back, russet on the sides and belly, and black on the face. Its tail has white rings around it that are often visible against its dark fur.



Allen's swamp monkeys use gestures & vocalizations to communicate with their troop. They have warning chirps, deep croaks, and grunts which are all unique between the animals and can be used to identify specific behaviors or needs.

Food/Eating Habits

Allen's swamp monkeys are highly omnivorous and eat both fruits and insects, as well as leaves and other food sources. They mainly forage in shallow water -- on solid ground or dry land, they will make their way to a water source.

Without help from humans, some animals at the Smithsonian's National Zoo are fed a diet of a complete primate biscuit supplemented with fruits, vegetables, and greens. This type of diet provides an optimal amount of nutrition for these primates.

Social Structure

A swamp monkey is social and lives in groups of 40 individuals. They share social grooming to ensure stronger bonds between the troop. Larger groups split off while smaller ones go off in search of food, carrying out highly coordinated movements. Mama monkeys are important in the group, as they teach their babies how to be social.

Males often have groups of their own, but females tend to hang out with other females and males later in life. The lifespan of a swamp monkey is around 10-15 years. Though they are largely arboreal spending much of their time in the trees, some semi-terrestrial monkeys will come to the ground to forage for food, as well as to attend to ground-dwelling insects.

Some semi-terrestrial monkeys also live in hollow trees. Monkeys are non-migratory and retain home ranges, although wandering may occur during the course of a day when feeding or interacting with others. All but one species is primarily arboreal; however, at least seven species are also occasionally found on the ground.

"Strepsirrhini" is the most diverse order of primates, with more than 280 species, including monkeys (including humans), lemurs, lorises, and galagos. They are divided into two suborders: "Haplorhini", including tarsiers and simians, with brains that have highly reduced neocortex regions; and "Primates", including most living primates, with brains that have evolved to have a much enlarged cerebral cortex.

The group was formerly divided into five or six suborders: "Adapiformes", "Euarchontoglires", and "Glires" (including prosimians, strepsirrhines, and tarsiers), "Hylobatiformes", and "Macrobaenura".The following is a list of the orders and families that belong to the clade. This list also includes some extinct groups, which are not in any extant order or family.


Reproduction and Development

Allen's swamp monkeys live in social groups with multiple females and males. They have twins after an average of 5-6 months, but only one female is the primary caretaker. Many primates, including the titi monkey (a type of capuchin monkey) and Allen's swamp monkeys, are typically weaned after a year. They tend to be very active soon after birth and have been recorded giving birth throughout the year.

Sleep Habits

Allen's swamp monkeys are diurnal. This means they like to be active during the day.


The life span of Allen's swamp monkey is estimated to be around 28 years

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