Pygmy Marmoset Monkey • Earth.comPygmy Marmoset Monkey

Last update: July 13th, 2020 at 9:00 am

The Pygmy Marmoset Monkey (Cebuella pygmaea) is native to the rainforests of the western Amazon Basin in South America. With an average weight of 100 grams (3.5 ounces) and an average head-body length of 13.4 centimeters (around 5.3 inches), it is the smallest monkey in the world. The pygmy marmoset can rotate its head 180 degrees and feeds on tree gum.

The pygmy marmoset (Cebuella pygmaea) is a small species of New World monkey native to rainforests of the western Amazon Basin in South America. The species is notable for being the smallest monkey and one of the smallest primates in the world, at just over 100 grams (3.5 oz) (Madame Berthe’s mouse lemur is smaller). It is generally found in evergreen and river-edge forests and is a gum-feeding specialist, or a gummivore.

About 83% of the pygmy marmoset population lives in stable troops of two to nine individuals, including a dominant male, a breeding female, and up to four successive litters of offspring. The modal size of a standard stable troop would be six individuals.Although most groups consist of family members, some may also include one or two additional adult members. Members of the group communicate using a complex system including vocal, chemical, and visual signals. Three main calling signals depend on the distance the call needs to travel. These monkeys may also make visual displays when threatened or to show dominance. Chemical signaling using secretions from glands on the chest and genital area allow the female to indicate to the male when she is able to reproduce. The female gives birth to twins twice a year and the parental care is shared between the group.

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