The Pygmy Marmoset or Finger Monkey is a native to the rainforest canopies of western Brazil, southeastern Colombia, eastern Ecuador, eastern Peru, and northern Bolivia. It is one of the smallest primates, and the smallest true monkey, with its body length ranging from 5.5 to 6.3 in and a tail 5.9 to 7.9. Males weigh around 4.9 oz, and females only 4.2.
Pygmy Marmosets live 11-12 years in the wild, but in zoos, they live into their early twenties. Marmosets often live in groups made up of an adult pair and its offspring; ranging from 2-6 members. Young marmosets typically remain in the group until after 2 consecutive birth cycles.
Like with any other wild animal they should not be kept as pets as they have nutritional and exercise needs that have to be met in order for them to remain healthy.