Andy Rouse / Galapagos sea lion (Zalophus wollebaeki) silhouetted at sunset, Galapagos.
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Peter Cairns / Twilight over Flakstad beach, Lofoten, Norway. February 2014.
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Peter Cairns / Twilight over Flakstad beach, Lofoten, Norway. February 2014.
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Ole Jorgen Liodden / Svalbard reindeer (Rangifer tarandus platyrhyncus) feeding at sunset, Spitsbergen, Svalbard, Norway, April.
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Tom Gilks / Nyiragongo volcano lava lake, Virungas National Park, Democratic Republic of Congo February 2015.
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Steven Kazlowski / Photographer in front of Northern lights / Aurora borealis glowing brightly over the frozen eastern Beaufort Sea, Arctic National Wildlife Refuge, Alaska Model released.
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Alex Hyde / Alpine meadow, Nordtirol, Austrian Alps, July 2014.
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Christophe Courteau / Light of the Creac'h Lighthouse at night. Ile d'Ouessant / Ushant, Finistere, Brittany, France, September 2011.
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Wild Wonders of Europe / Bartocha / Early purple orchid (Orchis mascula) on the Forca Canapine, Monti Sibillini National Park, Italy, May.