Goeldi’s monkeys have up to 40 different calls. They use these calls to keep in touch with each other whilst moving through the rainforest as well as alerting each other to the presence of food and predators.
Goeldi’s monkeys will often team up with other small species of monkey, such as red-bellied tamarins. They eat different foods so are not in competition with each other but will help to keep each other safe. More monkeys mean more lookouts and less chance of being eaten!
When a baby is born, it is the responsibility of the whole family to look after the infant. After about 2 weeks of staying with mum, the rest of the group take it in turns to carry the baby and will then help to teach it about life in the rainforest.