Think about the environment you can provide, and how closely it mimics their natural environment.

Social class exists within Capuchin monkeys and affects the everyday functioning of how the monkeys interact together. Class structure influences if monkeys will race to defend another or leave him be. [3] X Research source Your Capuchin may become aggressive toward you or begin throwing feces. This may be a way he is testing social boundaries with you.

If receiving a baby Capuchin, do as much as you can to imitate the mothering. Capuchin babies rely heavily on their mothers at the beginning of their lives, never leaving their side. Let them cling to you and observe their surroundings while close to you. If the monkey seems scared or apprehensive, cuddle it. Introduce objects (and people) slowly and show that you are ok with them.

Be sure to include some shade when building an outdoor section.

Use non-toxic plants and trees such as bamboo, rubber tree, willow, palm, or hibiscus. Avoid American oak, cedar, mistletoe, and pencil trees as these can poison your monkey.

Be aware that older monkeys may start refusing to wear diapers or take them off and smear feces. There is no surefire way to eliminate messes.

Lock all doors that the monkey is not allowed to enter. While monkeys are often fascinated with lamps, they can be dangerous. Remove any standing lamps that can fall over. Monkeys like to place items on top of the bulbs, which can start a fire. Your monkey is capable of unscrewing lightbulbs.

Do not overfeed. Monkeys will tend to throw food or create a mess when provided with too much food. Avoid feeding dairy, sweets, candies, or cereals as these are bad for Capuchins.