Scientists discovered that by studying nonhuman primate behaviors allow us better understand of our own species behavior. Nonhuman behaviors consist of variety. There are five different sectors of primate behaviors, including: aggression, sexuality, infant care, communication, and the last but not least is grooming. Grooming is the main function of bonding in both human and nonhuman anthropoid primates. Grooming involves tidying, cleaning, and brushing oneself or another. For Old World monkeys and apes, both self-grooming and social grooming is the primary living special features (Dunbar). Grooming is a unique set of skill that developed in animals, which they use fingers and thumb to grip. Social grooming has a significant impact on the primate’s lifetime reproductive fitness. Some species occupy themselves up to twenty percent daytime for allogrooming, in another words; it indicates social grooming between members of the same species (Dunber1991 and Lehmann2007). …show more content…
For example, a chimpanzee leafs through the fur of another to clean, removing dead skin, parasites, and other debris. Grooming helps to maintain social bonds and it also increase the amount of protection from predators (Hertenstein, Holmes, Kerestes, and Verkomp 2006). Furthermore, grooming can both lowers a primate’s heart rate and releases endorphins (Dunbar1991). It makes the primates feels relax and calm. Anthropoid primates engage in allogrooming for longer time than necessary to fully each other in part because it become so relaxed like massaging and it can literally fall asleep. It insinuated that being grooming by another primate is physiologically relaxing (Dunbar2008). Also, sometime male primates trading grooming for sex. Grooming between males and females would influence the chances of reproduction. Primates build the trust and basic social relationship through