Monkeys are a group of animals that are very similar to humans. They have a similar brain and body structure, and are able to communicate through their body language. Their reproductive and immune systems are very similar to those of humans. In fact, monkeys are used in many different kinds of research.
A variety of species live in Africa, South America, Madagascar, and Antarctica. Several regions allow hunting of monkeys for food. However, the biggest threat to monkeys is human activity. This includes hunting and development.
Most monkeys live in trees in tropical rainforests. Macaques, for example, live in multimale, multifemale groups. The males defend their territory from the other members of the troop.
Some monkeys are also able to swim across water to get to food. They also have webbed toes, which are as flexible as the hands.
Monkeys are primarily social animals, and are highly intelligent. They are often used in research in fields such as vision and neurological disorders.
Most monkeys are smaller than apes. They usually have tails. The New World monkeys are a part of the Platyrrhini clade. These include owl monkeys, tamarins, capuchins, and marmosets.
Monkeys have a very large repertoire of emotions. Aggression is displayed through jerking of the head, yawning, and bared teeth. Sexual activity is restricted to a period around ovulation. Generally, females stay in the troop of their birth.
Monkeys are sociable creatures, and often live in troops of females. Females nurse their young. Males join the troop once they are mature.