Japanese Macaques Form Huddle To Keep Warm [Getty Images]

SUMOTO, JAPAN - JANUARY 18: Japanese macaque monkeys huddle together in a group to protect themselves against the cold weather at Awajishima Monkey Center on January 18, 2014 in Sumoto, Hyogo Prefecture, Japan. Low temperatures has hit across Japan with more heavy snowfall in February. (Photo by Buddhika Weerasinghe/Getty Images)

Getty Images News Buddhika Weerasinghe