Marmoset - common name for small monkeys, with a long and thin tail, which have a very short and non-opposable thumb of the hand, with claw-shaped nails, very abundant in certain regions of Brazil.

Stock photo: Marmoset - common name for small monkeys, with a long and thin tail, which have a very short and non-opposable thumb of the hand, with claw-shaped nails, very abundant in certain regions of Brazil. was taken by adriano_egydio .