In a harsh Arctic landscape, a hungry and solitary polar bear has to decide if a naïve Canadian grizzly bear is her food or her friend.In a harsh Arctic landscape, a hungry and solitary polar bear has to decide if a naïve Canadian grizzly bear is her food or her friend.In a harsh Arctic landscape, a hungry and solitary polar bear has to decide if a naïve Canadian grizzly bear is her food or her friend.