according to [42], naturally, the long-tailed macaques are classified as frugivorous animals. The long-tailed macaques have a hierarchy in the group, so they have their own way to avoid a fight when looking for food together. Sometimes the long-tiled macaques in the study area is split into smaller groups when searching for food, in which this is the most effective strategy to avoid a fight and food struggle among them. In addition, the lower hierarchy moves towards food first before the higher hierarchy, so that they can eat first before the higher hierarchy conquers the food.