Michael & Patricia Fogden / Green Hermit (Phaethornis guy) hummingbird feeding on and pollinating Desconocido (Razisea spicata) flowers, in cloud forest, Costa Rica
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Sergey Gorshkov / Arctic fox (Alopex lagopus) juveniles play fighting, Wrangel Island, Far East Russia, August.
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Sergey Gorshkov / Arctic foxes (Vulpes lagopus) playing, silhouetted at sunset, Wrangel Island, Far Eastern Russia. August 2010.
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Sergey Gorshkov / Arctic fox (Vulpes lagopus) in winter fur, licking nose, Wrangel Island, Far Eastern Russia, October.
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Sergey Gorshkov / Arctic fox (Vulpes lagopus) with Snow goose egg in mouth, mid moult from winter to summer fur, Wrangel Island, Far Eastern Russia.
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Sergey Gorshkov / Arctic fox (Vulpes lagopus) with Snow goose egg in mouth, mid moult from winter to summer fur, Wrangel Island, Far Eastern Russia, June.
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Sergey Gorshkov / Arctic fox (Vulpes lagopus) with Snow goose egg in mouth, mid moult from winter to summer fur, Wrangel Island, Far Eastern Russia, June.
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Olga Kamenskaya / Cracks in the ice of Lake Baikal, Siberia, Russia, March.
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Igor Shpilenok,Igor Shpilenok / Kamchatka Brown Bear (Ursus arctos beringianus) recently risen from hibernation in the caldera of the Uzon Volcano. Kronotsky Zapovednik Nature Reserve, Kamchatka Peninsula, Russian Far East, April.
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Franco Banfi / Scuba diver under ice next to large ice formation, Arctic circle Dive Center, White Sea, Karelia, northern Russia, March 2010. No release available.
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Franco Banfi / Beluga whale (Delphinapterus leucas) swimming under ice, Arctic circle Dive Center, White Sea, Karelia, northern Russia. Captive
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Franco Banfi / Scuba diver under ice, surfacing to the hole, viewed from underneath, Arctic circle Dive Center, White Sea, Karelia, northern Russia March 2010. No release available.
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Franco Banfi / Scuba diver under ice and ice formation, Arctic circle Dive Center, White Sea, Karelia, northern Russia March 2010. No release available.