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                Blue Monkey

                Blue Monkey

                Diademed monkey, Golden monkey, Samango, Sykes' monkey

                Kingdom
                Phylum
                Subphylum
                Class
                Order
                Suborder
                Infraorder
                Subfamily
                SPECIES
                Cercopithecus mitis
                Population size
                Unknown
                Life Span
                20-30 yrs
                WEIGHT
                4-6 kg
                LENGTH
                50-65 cm

                Despite what the common name suggests, the Blue monkey is not blue. In fact, the species is so called due to the hairless face, which seems to be colored in blue. This Old world monkey is of great interest for scientists. The primate has a dark head top. The coloration of the body is mainly olive or grey. Additionally, the Blue monkey exhibits some black and white markings all over its body.

                Distribution

                The Blue monkeys have a rather large natural range, covering central, eastern, and southern Africa as well as the Congo basin. Within this range, Blue monkeys inhabit humid and shady areas. Constant source of water is among the primary required conditions. Overall, preferred habitats are evergreen forest, forest canopy and bamboo forest.

                Blue Monkey habitat map

                Climate zones

                Habits and Lifestyle

                Blue monkeys are diurnal animals that are active during the daytime hours. They are highly social creatures, forming groups of 10 - 40 individuals. This is a female-dominated society, consisting of a single male and multiple females with their young. This kind of social structure prevents interbreeding within the group. When reaching maturity, females continue living with their natal groups, whereas males have to leave in order to join another group. However, sometimes it takes too long for them to find a group, hence some of these males may live solitarily. Blue monkeys are arboreal animals, living in trees. Group members spend a lot of their active time playing and grooming. These primates are known to be highly territorial. If an individual wants to join a given group, it has to challenge and overcome the dominant male of the group.

                Diet and Nutrition

                As frugivorous and folivorous animals, these primates generally feed upon fruits and leaves, supplementing this diet with invertebrates such as slow-moving slugs and worms.

                Mating Habits

                MATING BEHAVIOR
                REPRODUCTION SEASON
                Year-round
                PREGNANCY DURATION
                5 months
                BABY CARRYING
                1 infant
                INDEPENDENT AGE
                6 months
                FEMALE NAME
                female
                MALE NAME
                male
                BABY NAME
                infant

                Blue monkeys are generally polygynous, which means that one male mates with numerous females. However, this species also exhibits polygynandrous (promiscuous) mating system, where individuals of both sexes have multiple mates. Although they breed year-round, females yield offspring every two years. A single infant is born after a gestation of 5 months. Babies are usually born with intervals of a few days. Newborn young live in groups of up to 40 individuals, where females care for each other's young. Weaning occurs at 6 months old and the age of sexual maturity is 3 years old.

                Population

                Population threats

                The biggest threat to the population of these primates is destruction of their natural habitat as a result of rainforest clearing. Additionally, Blue monkeys are hunted for meat. These animals are also persecuted as pests due to consuming cultivated crops or destroying non-native trees.

                Population number

                According to IUCN, Blue monkey is generally common throughout its range but no overall population estimate is available. However, there have been estimated 200-500 individuals of the Blue monkey subspecies, living in Somalia. Overall, Blue monkeys are classified as Least Concern (LC), but their numbers are decreasing today.

                Ecological niche

                On one hand, Blue monkeys are an important prey species for various predators of their range. On the other hand, as frugivorous animals, they act as key seed dispersers of many local plants.

                Fun Facts for Kids

                • This species is so called due to the bluish coloration of its face.
                • Blue monkey is otherwise called 'Diademed monkey", referring to a diadem-like, whitish or yellowish marking on its forehead.
                • As it is said, safety in numbers. Hence, these primates may often be seen together with other monkey species such as Red colobus and Red-tailed monkeys. This is done to form "alliances", which help individual animals escape predators.
                • Monkeys display aggression by a wide variety of ways, including yawning, head bobbing, lip grinning or pulling as well as jerking the head and shoulders forward.
                • Mutual grooming is an important activity for these primates, allowing them to express affection and make peace with each other.
                • As a matter of fact, humans and old world monkeys have the same ancestor. According to scientists, the evolutionary split happened about 20 - 30 million years ago.

                References

                1. Blue Monkey Wikipedia article - https://en.wikipedia.org/wiki/Blue_monkey
                2. Blue Monkey on The IUCN Red List site - http://www.iucnredlist.org/details/4221/0

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