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Pygmy marmoset

Cebuella pygmaea

Pygmy marmosets are the worlds’ smallest monkey; males weigh just over 100g, the females are slightly larger weighing just over 122g and new-borns are only 16g!

Interesting fact: Despite its size, the Pygmy marmoset can leap several metres!

Find out more...


Habitat & threats

Forest near rivers, edges of agricultural fields and bamboo thickets where there is only limited human activity. Much of this primate’s habitat is under considerable threat from deforestation to make way for agriculture.



Mostly exudates such as tree saps and gums although fruit, nectar and insect prey is also eaten. Nearly 65% of the diet is from exudates and they gouge holes in the bark of many trees to keep a constant supply of tree sap. Marmosets have specially adapted teeth for this task, it has been recorded that over 1700 holes can be gouged in 6 months. They spend most of their life in the trees but will come to the ground to catch grasshoppers.


Breeding and social dynamics

Monogamous family groups of one male and one female with several sets of youngsters but groups can be as large as 15 animals or more. The female will normally give birth to twins after around 130 days of pregnancy. The dominant male will not allow any of the younger males to mate with the breeding female.


Part of a managed European breeding programme.