Whiteangel33

The Golden Lion Tamarin, also known as Golden Marmoset, is a small New World monkey of the family Callitrichidae. Native to the Atlantic coastal forests of Brazil, the Golden Lion Tamarin is an endangered species with an estimated wild population of "more than 1,000 individuals" and a captive population maintained at approximately 490 individuals.

This lion tamarin is a reddish orange to golden brown in color. Its hair is longer and darker around the face, forming a mane on top of the head and on the cheeks and throat. Its limbs are slender yet capable with sharp claw-like nails. The tail and forepaws of this monkey may have a black coloration. Its body may be up to 335 millimetres (13.2 in) long and its tail up to 400 millimetres (16 in). The male reaches a maximum weight of just 700 grams (25 oz) in the wild though higher weights can be found in captivity. The pregnant female may weigh up to 790 grams (28 oz) but a non-gestating female typically weighs closer to 550 grams (19 oz).

Most of the wild population is confined to the Poço das Antas Biological Reserve, a protected area of swampy forests in the state of Rio de Janeiro. It is an important bastion of the Golden Lion Tamarin, as only 2% of forests in the monkey's original range remains. Furthermore, its existing habitat has been broken up by logging and agriculture; this has led to isolated populations and inbreeding, a combination likely to result in extinction.