The similarity of the biochemical and physiological processes of monkeys and human beings makes the non-human primate an extremely valuable research animal species. The monkey's mental capacity, which goes far beyond that of all other research animals, must be a primary consideration in its care and handling. Most of the monkeys used in research studies have been imported from their natural habitats. This practice is in the process of being discontinued. Breeding colonies are being established in more controlled environments, but the cost of producing them in quantities will be greatly increased.
Monkeys are difficult to handle and can be dangerous.
Special handling procedures must be employed to properly care for the monkey. The monkey's living environment is extremely important. Without the home condition, the monkey's mental and physical health will be adversely affected. Proper conditions in the cage depend upon the type of primate, although most are able to adapt to some variations, especially temperature changes, if they are gradual. As well has having good physical facilities, the monkeys must be managed well to ensure reliable research results.