Mating behavior becomes the seventh highest behavior that has been observed. Female long-tailed macaques were found to choose only strong and dominant males to mate. This may be because the female long-tailed macaques want to give birth to a strong baby and get protection from the dominant males. This study was supported by [22, 40] who found that female long-tailed macaques prefer to mate with the dominant males. This evidence can be strengthened further with the study of [8] who found that dominant male monkeys were the father of almost all the children in their group. Mating behavior at the study area was found to be instituted by male long-tailed macaques where they will find suitable females for mating. Male long-tailed macaques were found to smell the female genitalia first to ensure that the females are ready or not to mate