According to Palomar College, monkeys evolved from an extinct species known as prosimians during the transition to the Oligocene Epoch, approximately 33.9 million years ago. Monkeys quickly overcame the prosimians, proba... More »

The squirrel monkey is a small species of New World monkey whose native habitat is in the forests and tropical jungles of Central and South America. Due to their small size, squirrel monkeys can only protect themselves b... More »

When sea monkeys first hatch, they are approximately the size of a period at the end of a sentence, but they can grow to reach up to 2 inches in length as adults. Sea monkeys can either mate to become pregnant or fertili... 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 »

There are more than 260 known species in the world, split into two groups: new world and old world monkeys. Some examples of new world monkeys are spider monkeys, tamarins, howler monkeys and marmosets, while the old wor... More »

According to the University of Wisconsin, the life span of monkeys varies by species. The purple-faced leaf monkey is at the lower end with a life expectancy of about eight years. More » Pets & Animals Mammals Monkeys

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 » Pets & Animals Mammals Monkeys