Monkeys are wild animals and from time to time they will exhibit behaviors that we might not like. Punishing a monkey is not only inhumane but it will also make him fear you and he will not be able to learn what he needs to know.
Monkeys communicate by using facial expressions and body movements to convey their emotions. For example, grinning and pulling the lip up to show the teeth may seem like a smile but it is actually a sign of aggression. Monkeys use vocalizations to communicate as well. They can bark, scream, grunt, chirp, squeak, hoot and wail to communicate with other monkeys.
Most monkeys are omnivores but their diets tend to tilt heavily toward plant matter. For example, New World monkeys such as guavas, acai, and capuchins typically consume about 95% of their calories from plants, with only 5% coming from meat or invertebrates.
The majority of monkeys live in large groups, which provides them with protection against predators and the opportunity to pass knowledge of food sources to younger members of the group. This is especially true for monkey species that are tree-dwelling.
Most monkeys are very curious and love to explore their environment. They will pull on curtains, chew on furniture and open windows. It is a good idea to keep all items away from their reach that you don’t want them to destroy and to only let them out in the areas of your house that are safe for them.