Some animals are so small they seem more like toys than creatures of the wild. Take the finger monkey , for example. Also known as the pygmy marmoset, it's the smallest monkey in the world and could fit snugly in the palm of your hand.

But don't let the size fool you. These tiny monkeys have complex lives shaped by the forests of South America, intricate social behavior, and a role in the global pet trade.

What Is a Finger Monkey?

Finger monkeys are a type of pygmy marmoset, part of the marmoset monkeys group. As New World primates, they're native to the Amazon region and thrive in the forest trees of Brazil, Colombia, Ecuador, Peru, and Bolivia.

Adults grow to about 4.7 to 6.2 in (12 to 16 cm) long, excluding a tail that nearly doubles their total length.

Their name comes from bein

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