[Japan, February 17. Images via Getty.]

Japanese Macaque monkeys relax in the hot spring at the Jigokudani (Hell's Valley) Monkey Park in Jigokudani, Nagano, Japan. This Macaque troop regularly visits the Jigokudani-Onsen springs to escape the cold, behaviour originating from a female Macaque which ventured into the hot springs to retrieve soybeans in 1963.