下北半島
The Japanese macaque is the northernmost-living nonhuman primate. It is found on three of the four main Japanese islands: Honshu, Shikoku, and Kyushu. The northernmost populations live on the Shimokita Peninsula, the northernmost point of Honshu. Several of Japan's smaller islands are also inhabited by macaques. The southernmost population living on Yakushima Island is a subspecies of the mainland macaques, "M. fuscata yakui". A study in 1989 estimated the total population of wild Japanese macaques to be 114,431 monkeys.