Charlie Summers / Black Bear (Ursus americanus) sleeping in a Sitka Spruce tree (Picea sitchensis) alongside Anan Creek, Alaska, July.
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Steven Kazlowski,Steven Kazlowski / Polar bear (Ursus maritimus) juvenile spreading body weight over thin newly forming pack ice, trying not to break through, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North...
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Nick Garbutt / RF- Young Ring-tailed lemurs (Lemur catta) carried on mother's back, Madagascar. (This image may be licensed either as rights managed or royalty free.)
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Stefan Christmann / Emperor penguin (Aptenodytes forsteri) chick aged 20-24 weeks toboganning / sliding on ice whilst parents fish at sea. Atka Bay, Antarctica. January.
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Kirkendall-Spring / Woman Camper reading in tent above Island Lake, Wind River Range, Bridger Wilderness, Bridger National Forest, Wyoming, USA. September 2015. Model released.
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Kirkendall-Spring / Camper reading inside tent above Island Lake, Wind River Range, Bridger Wilderness, Bridger National Forest, Wyoming, USA. September 2015. Model released.
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Kirkendall-Spring / Camper reading inside tent above Island Lake, Wind River Range, Bridger Wilderness, Bridger National Forest, Wyoming, USA. September 2015. Model released.
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Andy Rouse / Polar Bear (Ursus maritimus) in snowstorm, Svalbard, Norway. July.
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Andy Rouse / Polar Bear (Ursus maritimus) sleeping in snowstorm. Svalbard, Norway. July.
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Will Burrard-Lucas / Meerkat (Suricata suricatta) using photographer Will Burrard-Lucas as a lookout post, Makgadikgadi Pans, Botswana. Model released.
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Steven Kazlowski / Polar bear (Ursus maritimus) juvenile spreading body weight over thin newly forming pack ice, trying not to break through, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North...
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Ingo Arndt / Horseshoe Crab (Limulus polyphemus) lies on its back on the morning after spawning night, Delaware Bay, Delaware