Japanese macaque monkeys huddle together to protect themselves against the cold weather at Awajishima Monkey Center on Feb. 10 in Sumoto, Hyogo, Japan. Severe winter weather has hit Japan with more heavy snow forecast today.

Japanese macaque monkeys huddle together to protect themselves against the cold weather at Awajishima Monkey Center on Feb. 10 in Sumoto, Hyogo, Japan. Severe winter weather has hit Japan with more heavy snow forecast today.

This is a handout photo from the Columbus Zoo and Aquarium of one of two macaques that were captured by authorities Wednesday, Oct. 19, 2011, a day after their owned released dozens of wild animals and then killed himself near Zanesville, Ohio. Sheriff's deputies shot and killed 48 of the animals, including 18 rare Bengal tigers, 17 lions, six black bears, two grizzly bears, a baboon, a wolf and three mountain lions. Six of the released animals - three leopards, a grizzly bear and two monkeys - were captured and taken to the Columbus Zoo.

A rescued brown bear is pictured on October 19, 2011 in this Columbus Zoo and Aquarium photograph released to Reuters on October 20, 2011.

A rescued black leopard is pictured on October 19, 2011 in this Columbus Zoo and Aquarium photograph released to Reuters on October 20, 2011. The exotic animal collector who set free his lions, tigers, bears and other beasts was bitten in the head by a big cat shortly after committing suicide, authorities said on Thursday. Three leopards, a young grizzly bear and two macaque monkeys were recaptured and sent to the Columbus Zoo, and a zoo spokeswoman said they "were doing very well" in the zoo's animal hospital.