Igor Shpilenok / Red Fox (Vulpes vulpes) in snowy landscape with Kronotsky Volcano, Zapovednik, Kamchatka, Russia

Igor Shpilenok / Young red fox (Vulpes vulpes) portrait, with mouth open, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red Fox (Vulpes vulpes) portrait in a snow hole, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red Fox (Vulpes vulpes) portrait in the snow, with rays of sunlight. Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Two Red Foxes (Vulpes vulpes) fighting in a winter landscape, behind is the Tikhaya River. Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Fox (Vulpes vulpes) in a winter landscape, behind is Kronotsky Volcano, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Close up of Two Red foxes (Vulpes vulpes) fighting in the snow, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Two Red foxes (Vulpes vulpes) fighting in the snow, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Two Red foxes (Vulpes vulpes) approaching the photographers cabin, where one stands on the open window ledge. Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red fox (Vulpes vulpes) approaching the photographers cabin, where his cat sits in the window. Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red fox (Vulpes vulpes) climbing a tree in the snow Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red fox in the snow at dawn (Vulpes vulpes)Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Velikan (or "Giant") Geyser, the largest geyser on Kamchatka, periodically shooting to a height of a nine-story building and releasing 30 tons of water per minute. Colonies of thermophilic bacteria co...

Igor Shpilenok / Kronotskaya River and the Kronotsky Volcano covered in snow in April, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Red fox {Vulpes vulpes} beside water with Kronotsky volacano in the background, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / First snow on the smoking Karymsky volcano and lake in October, Kronotsky Zapovednik, Kamchatka, Far East Russia.

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) fishing for salmon in the Kronotskaya River at the foot of the Kronotsky Volcano, covered with a fresh coat of snow in September, Kronotsky Zapovednik,...

Igor Shpilenok / Snow-covered Kronotsky volcano connected to the Pacific Coast by the Kronotskaya river, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) at the "Stained glass window" in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Brown bear {Ursus arctos} resting in the spring sunshine, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) on slope, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) at the Malachite Grotto, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) male sniffing the tracks of a female in snow, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) at the 'Stained glass window', Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) enjoys hot steam from a geyser in Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Kamchatka brown bear (Ursus arctos beringianus) near photographer's wooden cabin, Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / A hot spring ringed by thermophilic bacteria in the vast caldera of the Uzon Volcano, Kronotsky Zapovednik, Kamchatka, Far East Russia .

Igor Shpilenok / Snow-covered Kronotsky Volcano rises above wetland forest and river, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Aerial view of the Zhupanov river and surrounding wetlands just south of the Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Larch tree in snow with the Kronotsky Volcano in the background, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Snow-covered Kronotsky and Krashennikov volcanoes in April, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Steaming fissures and geysers in the caldera of Uzon Volcano, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / The cold waters of the Pacific ocean wash the shores of Kamchatka, above which fiery volcanic ridges rise, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Stoat {Mustela erminea} in white winter coat, Kronotsky Zapovednik, Kamchatka, Far East Russia, April

Igor Shpilenok / Panoramic view of Kronotsky River and Kronotsky Volcano with Kamchatka brown bear (Ursus arctos beringianus) fishing in the river, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Water flowing over rapids in the Geyser River, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Male Kamchatka Brown bear (Ursus arctos beringianus) marks trunk of Stone birch to denote territory during mating season, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) peering into Igor's cabin, Valley of the Geysers Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Boiling red clay mud pots with steam, caused by underground volcanic activity, Valley of the Geysers, Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Taunshitz Volcano covered in snow, Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) skirting a steaming thermal field, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Red fox {Vulpes vulpes} portrait looking curious, on volcanic sand, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Female Kamchatka Brown bear (Ursus arctos beringianus) crossing stream, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Wet Kamchatka Brown bear (Ursus arctos beringianus) standing to get a better view of spawning Salmon, Kronotsky River, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Kronotsky Volcano with reflection in Kronotsky Lake, Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) walking along the Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Red fox {Vulpes vulpes} stretching on volcanic sand, Kamchatka's Pacific coast, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) cubs playing in snow, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / The 'Fireplace' rock formation, Geyser River, Valley of the Geysers, Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Brown bear {Ursus arctos} mother with cubs, Valley of the Geysers, Kronotsky Zapovednik, Russia.

Igor Shpilenok / Stoat {Mustela erminea} with vole prey, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) mother standing with cub, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Stoat {Mustela erminea} running, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) leaping for Calico salmon during spawning season, Kronotsky River, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Dalney (Far) Lake covered with ice, Uzon Caldera, Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Spring in the caldera of the Uzon Volcano, Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Brown bear {Ursus arctos} young male follows female in mating season, Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) resting on warm ground next to thermal waters, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) head underwater looking for Salmon underwater, Kronotsky River, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Stoat {Mustela erminea} portrait peering out of den, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) standing on rear legs, Kamchatka, Kronotsky Zapovednik Reserve, Russia.

Igor Shpilenok / Kamchatka Brown bear (Ursus arctos beringianus) footprint in mud, Koryaksky Zapovednik, Russia.

Igor Shpilenok / Wolverine (Gulo gulo) and Red fox (Vulpes vulpes) feast on the carcass of a bear that didn't make it through the winter. Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Two Red Foxes (Vulpes vulpes) playing in the tundra, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Young red fox (Vulpes vulpes) in brightly coloured tundra, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red Fox (Vulpes vulpes) running and carrying a fish, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red Fox (Vulpes vulpes) scratching in tundra, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Two Red Foxes (Vulpes vulpes) fighting on tundra, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red Fox (Vulpes vulpes) in snowy winter landscape at dusk, with Kronotsky Volcano behind, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red Fox (Vulpes vulpes) running down a snowy slope, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red Fox (Vulpes vulpes) in snow by river with refelctions, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red Fox (Vulpes vulpes) in snowy landscape, covered in snow and foraging for food, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / A pair of Red Foxes (Vulpes vulpes) sitting in a moonlit dusk winter landscape, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Two Red Foxes (Vulpes vulpes) playing mating games, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Two Red Foxes (Vulpes vulpes) playing in a winter landscape, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Fox (Vulpes vulpes) in a winter landscape, hunting for mice, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red fox (Vulpes vulpes) jumping over a partially frozen stream, in the snow. Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red Fox (Vulpes vulpes) on a moonlit night, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red fox (Vulpes vulpes) curled up in the snow, Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Red fox (Vulpes vulpes) climbing a tree in the snow Kronotsky Zapovednik, Kamchatka, Russia

Igor Shpilenok / Aerial view of Kamchatka landslide, where on 3 June 2007 a massive landslide buried part of Kamchatka's Valley of the Geysers. Kronotsky Zapovednik, Kamchatka, Russia.

Igor Shpilenok / Hot water flowing from geysers creates a favorable environment a variety of colourful algae in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Japanese Sable {Martes zibellina} feeding on Salmon, Kronotsky Zapovednik, Kamchatka, Far East Russia. The reserve was originally created as a sanctuary for the overhunted Sable.

Igor Shpilenok / Cowberry leaves {Vaccinium vitis idaea} covered in frost in autumn on tundra, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Walls of the Uzon volcano rising up above the fumeroles and hot springs in its caldera, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Conifers in summer woodlands, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Brown bear in Valley of the Geysers, Geyser River, Kronotsky Zapovednik, Kamchatka, Far East Russia, 2006 (one year before the landslide of June 3, 2007, blocked part of the Valley of the Geysers, d...

Igor Shpilenok / Spring snow in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, May

Igor Shpilenok / American mink {Mustela vison} with face covered in snow, Kronotsky Zapovednik, Kamchatka, Far East Russia. American mink, first introduced to Russia last century, compete with sable and other local sp...

Igor Shpilenok / First snow on the smoking Karymsky volcano and lake in October, Kronotsky Zapovednik, Kamchatka, Far East Russia.

Igor Shpilenok / Stain glass wall and Geyser River in the Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, May 2006. Brown bears like to gather in the warm valley in spring to feed on fresh gra...

Igor Shpilenok / A hot spring in the Uzon Caldera spews out a large range of chemical elements that colour the earth, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / Helicoptor flying over the visitor centre and a landslide in Valley of the Geysers, Kronotsky Zapovednik, Kamchatka, Far East Russia, June 2007. The landslide stopped short of the visitor's center on...

Igor Shpilenok / Snow-covered Kronotsky volcano and the Pacific Coast, Kronotsky Zapovednik, Kamchatka, Far East Russia

Igor Shpilenok / DUPLICATE IMAGE Kronotsky Volcano in March Kronotsky Zapovednik The Kronotsky River winds before the volcano of the same name in a snowy winterscape in March on Russia's Kamchatka Peninsula.

Igor Shpilenok / Aerial view of the landslide of June 3, 2007, which blocked part of Kamchatka's Valley of the Geysers, damning the Geyser River and creating a lake. This picture was taken on June 15, six days after t...