Steven Kazlowski / Two curious young Polar bears (Ursus maritimus), Barter Island, off the 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, October 2011
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Danny Green / Polar bear (Ursus maritimus) resting in snow. Svalbard, Norway, July.
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Danny Green / Polar bear (Ursus maritimus) standing on glacier. Svalbard, Norway, July 2018.
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Danny Green / Polar bear (Ursus maritimus) male in snow. Svalbard, Norway, April.
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Danny Green / RF - Polar bear (Ursus maritimus) male walking through snow covered landscape, mountains in background. Svalbard, Norway, April (This image may be licensed either as rights managed or royalty free.)
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Edwin Giesbers / Giant panda (Ailuropoda melanoleuca) in snow, captive.
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Francois Savigny / Polar bear and cub asleep on drifting iceberg, summer, Svalbard, Norway
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Matthias Breiter / Polar Bear (Ursus maritimus) male resting on ice, Hudson Bay, Manitoba, Canada
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Matthias Breiter / Polar Bear (Ursus maritimus) male resting on ice, Hudson Bay, Manitoba, Canada
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Katherine Feng / Giant Panda (Ailuropoda melanoleuca qinlingensis) brown and white morph, China
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Katherine Feng / Giant Panda (Ailuropoda melanoleuca qinlingensis) brown and white morph, China
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Todd Mintz / Polar bear (Ursus maritimus) cub at entrance to den, Manitoba, Canada. March.
