Grooming behavior becomes the fourth highest behavior have been observed after resting. This grooming behavior was associated with resting. Usually the long-tailed macaques in the study area will do grooming another one is resting. Most of the grooming activities are carried out among the females, especially for adult females and have a baby, this case study is supported by [22] and could support a study conducted by [4] which states the male long-tailed macaques do not always groom themselves in the wild