This list of the world’s cutest animals is sure to make you smile. The pygmy marmoset (Callithrix pygmaea) is a tiny New World monkey native to the Amazon rainforests of South America.

and you can’t deny that the itsy-bitsy baby is especially cute. But its future—as well as the future of its entire species, remains uncertain. Marmosets are small, arboreal monkeys of the New ...