Howler monkeys have few enemies, though young howler monkeys are vulnerable to the harpy eagle. The biggest threat to the howler monkey is humans. Local tribes hunt them for food, and they are often exported as pets. More »

Howler monkeys are native to the tropical areas of Central and South America, particularly in the rainforests of places like Brazil, Bolivia and Paraguay. They spend most of their time in the treetops, rarely venturing t... More »

The howler monkey eats mostly leaves. They are folivores, which are animals that specialize in eating leaves, but they will also consume fruits, nuts and flowers as well as birds' eggs on occasion. Characteristics of fol... More »

There are more than 260 different species of monkeys, including baboons, howler monkeys, spider monkeys, blue monkeys and mandrills. Other species of monkeys include Capuchin monkeys, common marmosets, squirrel monkeys a... More »

www.reference.com Pets & Animals Mammals Monkeys

According to the University of Michigan, the enemies, or predators, of spider monkeys are jaguars, pumas, ocelots, margays and harpy eagles. The biggest threat to this animal, however, is humans. More »

The pygmy marmoset is the smallest species of monkey in the world. Fully grown, they only weigh 4 to 5 ounces and are 6 inches long. The only primates smaller than pygmy marmosets are pygmy mouse lemurs and pygmy tarsier... More »

Monkeys are highly social animals that primarily survive in the wild by forming large, cooperative groups. Experienced adults in the group are able to pass on survival skills to their young. More »