
Japanese macaques, commonly referred to as "snow monkeys", taking an open-air hot spring bath, or "onsen" at the Jigokudani (Hell's Valley) Monkey Park in the town of Yamanouchi, Nagano prefecture. AFP

Red-crowned cranes, dancing gracefully in the snowy fields, spread their wings and perform a "courtship dance" at the feeding area of the "Tsurui Ito Red-crowned Crane Sanctuary" in the village of Tsurui, in Japan's northern island of Hokkaido. AFP

Deer play at Nara Park in Nara. AFP

Tourists watching Japanese macaques, commonly referred to as "snow monkeys", running on a rail towards an open-air hot spring bath, or "onsen" at the Jigokudani (Hell's Valley) Monkey Park in the town of Yamanouchi, Nagano prefecture. AFP

Japanese macaques, commonly referred to as "snow monkeys", playing in the snow at the Jigokudani (Hell's Valley) Monkey Park in the town of Yamanouchi, Nagano prefecture. AFP

Tourists making photographs of Japanese macaques, commonly referred to as "snow monkeys", taking an open-air hot spring bath, or "onsen" at the Jigokudani (Hell's Valley) Monkey Park in the town of Yamanouchi, Nagano prefecture. AFP

Japanese macaques, commonly referred to as "snow monkeys", taking an open-air hot spring bath, or "onsen" at the Jigokudani (Hell's Valley) Monkey Park in the town of Yamanouchi, Nagano prefecture. AFP

Japanese macaque, commonly referred to as a "snow monkey", taking an open-air hot spring bath, or "onsen" at the Jigokudani (Hell's Valley) Monkey Park in the town of Yamanouchi, Nagano prefecture. AFP

A visitor feeds the deer at Nara Park in Nara. AFP

A deer with short antlers looks on at Nara Park in Nara. AFP

Visitors stand next to deer at Nara Park in Nara. AFP