Hibernating brown bears wake up 1 month early in Finland
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Several brown bears at Helsinki's Korkeasaari Zoo were exploring their snowy enclosure on Monday, having come out of hibernation a month early.
Zookeepers believe that the bears, who are 10 and 15 years old, cut short their hibernation due to mild weather. For these northern creatures, hibernation is a way to survive long, snowy winters when the temperatures drop and food is scarce.