The animals weigh up to 2 pounds. There are 14 species of tamarins. Most are multicolored, with red, white, and brown the most common color patterns.
Some species have long hair on the top of the head and showy mustaches.
The lion tamarins of eastern Brazil have a mane of long, silky hair on the head and a bright golden-orange coloring. Lion tamarins are in danger of extinction. The growth of urban areas has destroyed much of their habitat. Tamarins eat fruit, insects, frogs, and tree gums. They live in groups of up to 40 members and communicate with each other by using a wide variety of high-pitched calls.