Bryan and Cherry Alexander / Nenets men playing cards in the evening at a reindeer herder's camp, Tambey, Yamal Peninsula, Western Siberia, Russia, March 2011
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Steven Kazlowski / Polar bear (Ursus maritimus) cub playing on newly formed pack ice, off the Arctic National Wildlife Refuge, Alaska
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Steven Kazlowski / Polar bear (Ursus maritimus) cub plays with a piece of Bowhead whale {Balaena mysticetus} baleen, Barter Island the the Arctic National Wildlife Refuge, Alaska
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Steven Kazlowski / Polar bear (Ursus maritimus) female and cub playing with a piece of Bowhead whale baleen, Arctic coast, Alaska
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Steven Kazlowski / Polar bear (Ursus maritimus) cubs playing on the pack ice over the Beaufort Sea, Arctic Ocean, Alaska
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Steven Kazlowski / Polar bear (Ursus maritimus) cubs playing on newly formed pack ice over the Beaufort Sea, Arctic Ocean, Alaska
