Pygmy marmosets live 11-12 years in the wild. But in the zoos, they live into their early twenties. Pygmy Marmosets often live in groups made up of an adult pair and their kids. Every group ranges from about 2-6 members. Young marmosets typically remain in the group until after 2 consecutive birth cycle. They love to drink the liquid that came out from the tree, and they also eat insects, too.
The Pygmy Marmoset - by Eileen Bao