Polar Bear three months old cub in day den between trees, on Tundra

snow covered snow denning area winter manitoba arctic ice hudson bay tundra denning site wapusk np wilderness polar sea ice ice bear fletcher lake lone denning ursus nanook polar bear no people carring first steps ursus maritimus resting predator on the move freezing protecting carnivore maritimus cub watching newly born churchill mother rare playing priceless threatened endangered young funny instinct baby cute