The bald uakari monkey lives in the western Amazon of Brazil and Peru.
The common squirrel monkey lives among treetops in the Amazon Basin.
A titi monkey, part of a family of species that ranges across South America.
At up to 20 pounds (9 kilograms), the Geoffroy's Spider Monkey is one of the largest monkeys in South and Central America. It uses its prehensile tail like a fifth limb while swinging from tree to tree.
A red howler monkey in Bolivia.
Two black howler monkeys sing together at a zoo.
A white-faced capuchin monkey from Costa Rica.
A tufted capuchin, resident of the Amazon Basin, eats as another capuchin grooms him.
A baby black-capped squirrel monkey hitches a ride on mama's back.
The distinctive golden lion tamarin is found only in Brazil. These distinctive monkeys are endangered.
A close-up of a baby golden lion tamarin reveals the mane that gives this species its name.
A pygmy marmoset clings to a tree. These teensy primates weigh less than 5 ounces.
A baby emperor tamarin gnaws a branch. This species of tamarin lives in small family groups.
The South American emperor tamarin was supposedly named for its resemblance to the German emperor Wilhelm II. Like many New World primates, the tamarin has evolved a distinctive face.
Impressive hairdo! The cottontop tamarin is a native of Colombia and is critically endangered.