Valeriy Maleev / Amur leopard (Panthera pardus orientalis) walking in snow, Land of the Leopard National Park, Primorsky Krai, Far East Russia. February.

Sergey Gorshkov / Plume of volcanic ash lit by a basaltic lava flow from the Tolbachik volcano complex, Kamchatka, Far East Russia, eruption lasted from December 22nd 2012 through to January 2nd 2013

Sergey Gorshkov / Plume of volcanic ash lit by a basaltic lava flow from the Tolbachik volcano complex, Kamchatka, Far East Russia, eruption lasted from December 22nd 2012 through to January 2nd 2013

Igor Shpilenok / Red fox (Vulpes vulpes) cub biting tail of adult male, Kronotsky Zapovednik Nature Reserve, Kamchatka Peninsula, Russian Far East. June.

Sergey Gorshkov / Arctic fox (Alopex lagopus) juveniles play fighting, Wrangel Island, Far East Russia, August.

Igor Shpilenok / Young female Kamchatka brown bear (Ursus arctos beringianus) playing with oil drum, Kronotsky Nature Reserve, Kamchatka, Far East Russia. May. These bears can develop addiction to sniffing the aviatio...

Igor Shpilenok / Young female Kamchatka brown bear (Ursus arctos beringianus) playing with oil drum, Kronotsky Nature Reserve, Kamchatka, Far East Russia. May. These bears can develop addiction to sniffing the aviatio...

Bryan and Cherry Alexander / Chukchi girls, with their family's ancestral clan mark painted in reindeer blood on their face, a ritual during the Chukchi 'Festival of the Young Reindeer' during which young reindeer are sacrificed....

Sergey Gorshkov / Plume of volcanic ash lit by a basaltic lava flow from the Tolbachik volcano complex, Kamchatka, Far East Russia, eruption lasted from December 22nd 2012 through to January 2nd 2013.

Sergey Gorshkov / Basaltic lava flow from the Tolbachik volcano complex, Kamchatka, Far East Russia, eruption lasted from December 22nd 2012 through to January 2nd 2013.

Sergey Gorshkov / Arctic foxes (Vulpes lagopus) playing, silhouetted at sunset, Wrangel Island, Far Eastern Russia. August 2010.

Sergey Gorshkov / Walrus (Odobenus rosmarus) on coast of Wrangel Island, Far Eastern Russia, September.