JIGOKUDANI, JAPAN – DECEMBER 27: A Japanese macaque monkies relaxes in the hot springs at Jigokudani-Onsen (Hell Valley) on December 27, 2005 in Jigokudani, Nagano Prefecture, Japan where the nation has been hit by record snowfall. Japanese Macaques, also known as snow monkeys are the most northerly nonhuman primate in the world. In 1963 a female Macaque ventured into the hot springs to retrieve some soybeans. This behaviour was adopted by other monkeys, and eventually by the entire troop. This Macaque troop regularly visits the Jigokudani-Onsen springs to escape the cold. The hot springs are said to help relieve nerve pain and fatigue. (Photo by Koichi Kamoshida/Getty Images)