Staffan Widstrand / Two Svalbard reindeer (Rangifer tarandus platyrhynchus) fighting; antlers shedding velvet; Spitsbergen, Svalbard, Norway, September
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Peter Cairns / Bison (Bison bison) pair standing on road in winter, Yellowstone National Park, Wyoming, USA, March.
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Sergey Gorshkov / Musk ox (Ovibos moschatus) portrait, Wrangel Island, Far Eastern Russia, March.
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Bruno D'Amicis / Apennine chamois (Rupicapra pyrenaica ornata) adult male. Endemic to the Apennine mountains. Abruzzo, Italy, December.
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Bruno D'Amicis / Apennine chamois (Rupicapra pyrenaica ornata) females in snowy mountain habitat. Endemic to the Apennine mountains. Abruzzo, Italy, November.
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Bruno D'Amicis / Apennine chamois (Rupicapra pyrenaica ornata) females and kids resting on rocky slope. Endemic to the Apennine mountains. Abruzzo, Italy, July.
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Juan Carlos Munoz / Walia ibex (Capra walie) silhouetted against the sky, Simien Mountains, Ethiopia.
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David Tipling / Shining Honeycreeper (Cyanerpes lucidus) La Selva, Costa Rica
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David Pattyn / RF - Alpine ibex (Capra ibex) male in deep snow on a ridge during heavy snowfall. Gran Paradiso National Park, the Alps, Italy. January. (This image may be licensed either as rights managed or royalty...
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David Pattyn / RF - Alpine ibex (Capra ibex) male in deep snow on a ridge during heavy snowfall. Gran Paradiso National Park, the Alps, Italy. January. (This image may be licensed either as rights managed or royalty...
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Sandra Bartocha / European Black pine tree (Pinus nigra) on steep mountainside, Pollino National Park, Italy. June 2009.
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David Tipling / RF - Head portrait of King penguin (Aptenodytes patagonicus) Holmestrand, South Georgia. January. (This image may be licensed either as rights managed or royalty free.)
