Lion tamarin

The four species of lion tamarins make up the genus Leontopithecus. They are small New World monkeys named for the mane surrounding their face, similar to the mane of a lion. Living in the eastern rainforests of Brazil, like all other callitrichids they are arboreal. Lion tamarins weigh up to 900 grams (32 oz) and are about 30 cm (12 in) long, with tails about 45 cm (18 in) long. They jump through trees using their fingers to hold on to branches; they use their claws to dig under the bark to search for insects to eat. They also eat some snakes, small lizards, and small fruits. All are endangered or critically endangered, in part because their habitat has been severely disrupted by development.