What do I eat? Pygmy marmosets mainly eat invertebrates and plant exudates (sap, gum, latex). They sometimes also eat small vertebrates such as lizards and birds. Pygmy marmosets have special dental adaptations so they can gnaw holes in the bark of certain trees and vines to stimulate gum production. Where do I live? These animals are found in Peru, Bolivia, Brazil, Ecuador and Colombia. They are mostly found in river-edge forest. Pygmy marmosets generally travel in the dense vegetation of the lower layers of the forest. They forage for insects and feed in the middle layer of the forest. Breeding Pygmy marmosets generally give birth to twins. There will be one breeding female in a group who usually gives birth twice a year. This female is dominant over all group members. Newborn pygmy marmosets weigh 13-15 g and their head to body length is 51-63mm. Pygmy marmosets are ‘cooperative breeders’ ,meaning that most group members help care for the infants, which are carried for the first 1½ to 2 months of their life. As they get older they may be left on their own for increasing periods of time as the group forages. Group members will offer food to infants while they are learning to catch their own prey. Pygmy marmosets are able to breed from about 1 ½ years of age. Predators It is thought that capuchin and squirrel monkeys prey on pygmy marmosets, because the marmosets give alarm calls and flee if they see them approaching. Other potential predators include hawks and falcons, forest cats and snakes. Conservation Pygmy marmosets are common and have a fairly wide distribution range. They don’t currently face any major threats, although in some parts of their range there is localized habitat loss which may be causing some declines.