Danny Green / Polar bear (Ursus maritimus) cub ready to jump down from pack ice. Svalbard, Norway, April.
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Sven Zacek / Bearded seal (Erignathus barbatus) sunbathing on iceberg broken off from glacier. Kongsfjorden fjord, Spitsbergen, Norway. June 2014.
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Andy Rouse / Polar bear (Ursus maritimus) standing on pack ice at the water's edge, Svalbard, Norway. June.
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Frederique Olivier / View of icebergs and pack ice at sunset, seen from a moving boat, Antarctica.
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Frederique Olivier / Group of Adelie penguins (Pygoscelis adeliae) diving from the edge of the sea ice, Antarctica.
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Frederique Olivier / Group of Adelie penguins (Pygoscelis adeliae) walking away from the camera on sea ice at sunset, with one solitary penguin in the foreground, Antarctica.
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Frederique Olivier / Group of Adelie penguins (Pygoscelis adeliae) running and gathered on sea ice, Antarctica.
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Frederique Olivier / Adelie penguin (Pygoscelis adeliae) colony, with icebergs and pack ice in the background, Antarctica.
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Ingo Arndt / Harp seal (Phoca groenlandicus) pup on sea ice looking down into icy water, Magdalen Islands, Gulf of St Lawrence, Quebec, Canada, March.
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Ingo Arndt / Harp seal (Phoca groenlandicus) pup sleeping on sea ice, Magdalen Islands, Gulf of St Lawrence, Quebec, Canada, March.
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Ingo Arndt / Polar Bear (Ursus maritimus) on icefield with moon in late winter, Svalbard, Spitsbergen, Norway, April
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Wim van den Heever / White tailed sea eagle (Haliaeetus albicilla) feeding on fish on pack ice, Hokkaido, Japan, February.
