Japanese macaque Japanese macaque The Japanese macaque (; "Macaca fuscata"), also known as the snow monkey, is a terrestrial Old World monkey species that is native to Japan. They get their name "snow monkey" because they live in areas where snow covers the ground for months each year – no other nonhuman primate is more northern-living, nor lives in a colder climate. Individuals have brown-grey fur, red faces, and short tails. Two subspecies are known. In Japan, the species is known as Nihonzaru (ニホンザル, a combination of "Nihon" 日本 "Japan" + "saru" 猿 "monkey") to distinguish it from other primates, but the
Macaque in check. For example, if 80% of females are sterilized every five years, or 50% every two years, it could effectively reduce the population. Other control strategies include planting specific trees to provide protection to native birds from macaque predation, live trapping, and the vaccine Porcine Zona Pellucida (PZP), which causes infertility in females Macaques have a very intricate social structure and hierarchy. If a macaque of a lower level in the social chain has eaten berries and none are left for a higher-level macaque, then the one higher in status can, within this social organization, remove the berries from