This tiny primate is one of the smallest monkeys in the world. The Pygmy Marmoset is native to the rainforests of South America and can reach a maximum size of just over 6 inches. They are known for their agility, as
From Wikipedia
Pygmy marmosets are two species of small New World monkeys in the genus Cebuella. They are native to rainforests of the western Amazon Basin in South America. These primates are notable for being the smallest monkeys in the world, at just over 100 g (3.5 oz). They are generally found in evergreen and river-edge forests and are gum-feeding specialists, or gummivores.