Pygmy marmosets are the smallest marmosets and one of the smallest of all primates. They inhabit Brazil, Ecuador, Peru and Colombia. Most pygmy marmosets lives in troops of two to nine individuals, with a dominant male, a breeding female, and up to four successive litters of offspring. The modal size of a standard stable troop would be 6 individuals.
They live in flooded forest near rivers, bamboo thickets and the edges of agricultural fields.
Pygmy marmosets mainly feed on gum (tree exudates, sap), but they also eat fruit, nectar and insects. They gouge holes in the bark of trees, and revisit these holes daily to collect the sap. The marmosets hang on with specially adapted claws.
- Soini, Pekka. 1992. Ecology and population dynamics of the pygmy marmoset, Cebuella pygmaea. Folia Primatologica 39, 1-21.