Good to Know:
Pygmy marmosets are the smallest members of the marmoset family. They live in family groups. As with many marmosets, only the dominant female in a group reproduces; ovulation is suppressed in the other females.
The entire group cares for the young—usually twins. All family members carry the young, who are handed over to their mother only for nursing.
A group's territory—which is usually small—centers around a tree that provides a rich source of food. Using their specialized teeth, the monkeys gnaw holes in the bark and then lick up the sap that oozes out.
| Order | Monkeys (Primates) |
| Family | Marmosets (Callitrichidae) |
| Distribution | Colombia, Ecuador, Peru, Brazil, Bolivia |
| Habitat | Rainforests |
| Food | Tree sap, insects, small vertebrates |
| Activity | Pygmy marmosets are diurnal |
| Weight | 85–140 g |
| Size | Body length 12–16 cm, shoulder height 17–23 cm |
| Service life | 12 years old (Zoo up to 18) |
| Reproduction | The gestation period is 4.5 months. In most cases, two young are born. |
| Risk | at risk |
| Enemies | Birds of Prey, Humans |