Steven Kazlowski,Steven Kazlowski / Polar bear (Ursus maritimus) young bear in freezing water during autumn freeze up, Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, Beaufort Sea
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Ashley Cooper / Mountaineers on the Cairngorm plateau in full winter conditions. Cairngorm mountains, Scotland, UK, February 2011
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Ashley Cooper / Man leaping at sunrise, Lake Windermere from Todd Crag above Ambleside, Lake District, England, UK. January 2012
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Ashley Cooper / Man silhouetted leaping at sunrise, Lake Windermere from Todd Crag above Ambleside, Lake District, England, UK. January 2012
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Ashley Cooper / Frozen waterfall, Red Screes in the Lake District, during a very cold snap. England, UK November 2010
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Ashley Cooper / Ice fall on Red Screes in the Lake District, during a very cold snap in Novembver 2010
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Ashley Cooper / Looking towards Cairn Toul across the Lairig Ghru from Ben Macdui on the Cairngorm plateau, Scotland, UK. February 2011
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Ashley Cooper / View towards the Angels Peak and Braeriach across the Lairig Ghru from the summit of Ben Macdui, on the Cairngorm mountains, Scotland, UK. In winter conditions, with sastrugi caused by wind drifted sn...
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Ashley Cooper / View towards the Angels Peak and Braeriach in snow, from the summit of Ben Macdui, on the Cairngorm mountains, Scotland, England, UK, February 2011
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Ashley Cooper / View towards the Angels Peak and Braeriach across the Lairig Ghru from the summit of Ben Macdui, on the Cairngorm mountains, Scotland, UK, February 2011
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Enrique Lopez-Tapia / Leopard seal (Hydrurga leptonyx) swimming in icy water, Antarctic Peninsula, Antarctica.
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Enrique Lopez-Tapia / Wilson's storm-petrels (Oceanites oceanicus) reflected on the icy water of Wilhelmina Bay, Gerlache Strait. Antarctic Peninsula, Antarctica.