Sergey Gorshkov / Red Fox (Vulpes vulpes) on snow, Kamchatka, Russia

Sergey Gorshkov / Caribou (Rangifer tarandus) mother and calf nuzzling, Kamchatka, Russia

Sergey Gorshkov / Red Fox (Vulpes vulpes), Kamchatka, Russia

Sergey Gorshkov / Red Fox (Vulpes vulpes) smelling snow, Kamchatka, Russia

Sergey Gorshkov / Northern Goshawk (Accipiter gentilis) feeding on Black Grouse (Tetrao tetrix) female in winter, Finland

Sergey Gorshkov / Siberian Tundra Reindeer (Rangifer tarandus sibiricus) herd migrating through snow, Putoransky State Nature Reserve, Putorana Plateau, Siberia, Russia

Sergey Gorshkov / Aurora borealis over river, Putoransky State Nature Reserve, Putorana Plateau, Siberia, Russia

Sergey Gorshkov / Aurora borealis over valley, Putorana Plateau, Siberia, Russia

Sergey Gorshkov / Deep canyon, Putorana Plateau, Siberia, Russia

Sergey Gorshkov / Lakes in taiga, Putoransky State Nature Reserve, Putorana Plateau, Siberia, Russia

Sergey Gorshkov / Waterfalls in deep canyon in plateau, Putoransky State Nature Reserve, Putorana Plateau, Siberia, Russia

Sergey Gorshkov / Leopard (Panthera pardus) carrying Bontebok (Damaliscus pygargus) calf prey, Londolozi, Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus) mother licking cub, Londolozi, Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus), Londolozi, Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus) drinking at night, Londolozi, Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Impala (Aepyceros melampus) herd running, Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus), Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus) sub-adult with Impala (Aepyceros melampus) kill in tree, Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Red-billed Oxpecker (Buphagus erythrorhynchus) trio on White Rhinoceros (Ceratotherium simum), Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus), Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Pacific Walrus (Odobenus rosmarus divergens), Wrangel Island, Russia

Sergey Gorshkov / Snow Goose (Chen caerulescens) group taking flight and calling, Wrangel Island, Russia

Sergey Gorshkov / Snow Goose (Chen caerulescens) pair flying over flock on ground near snowy mountain range, Wrangel Island, Russia

Sergey Gorshkov / Snow Goose (Chen caerulescens) pair courting, Wrangel Island, Russia. Sequence 3 of 4

Sergey Gorshkov / Arctic Fox (Alopex lagopus) chasing Snow Goose (Chen caerulesens) off its nest, Wrangel Island, Russia

Sergey Gorshkov / Polar Bear (Ursus maritimus) mother and cubs in snow, Wrangel Island, Russia. Sequence 1 of 3

Sergey Gorshkov / Muskox (Ovibos moschatus) pair, Wrangel Island, Russia

Sergey Gorshkov / Polar Bear (Ursus maritimus) showing aggression, Wrangel Island, Russia

Sergey Gorshkov / Arctic Fox (Alopex lagopus) pups playing, Wrangel Island, Russia

Sergey Gorshkov / Snowy Owl (Nyctea scandiaca) chick in defensive posture, Wrangel Island, Russia

Sergey Gorshkov / Polar Bear (Ursus maritimus) group scavenging on Pacific Walrus (Odobenus rosmarus divergens) carcass, Wrangel Island, Russia

Sergey Gorshkov / Tolbachik Volcano erupting, Kamchatka, Russia

Sergey Gorshkov / Leopard (Panthera pardus) snarling, Botswana

Sergey Gorshkov / Steam emitted from geysers, Geyser River, Valley of Geysers, Kamchatka, Russia

Sergey Gorshkov / Geyser River and geysers in background, Valley of Geysers, Kamchatka, Russia

Sergey Gorshkov / Steam emitted from geysers, Geyser River, Valley of Geysers, Kamchatka, Russia

Sergey Gorshkov / Bubbling geothermal mud pool, Kamchatka, Russia

Sergey Gorshkov / Sand dune, Namib Desert, Namibia

Sergey Gorshkov / Sand dunes, Namib Desert, Namibia

Sergey Gorshkov / Leopard (Panthera pardus) snarling, Botswana

Sergey Gorshkov / Red Fox (Vulpes vulpes) yawning, Kamchatka, Russia

Sergey Gorshkov / African Fish Eagle (Haliaeetus vocifer) displaying as another adult comes in for landing, Botswana

Sergey Gorshkov / Leopard (Panthera pardus) resting, Botswana

Sergey Gorshkov / Black-billed Capercaillie (Tetrao parvirostris) male displaying and calling, Kamchatka, Russia

Sergey Gorshkov / Black-billed Capercaillie (Tetrao parvirostris) male displaying and calling, Kamchatka, Russia

Sergey Gorshkov / Black-billed Capercaillie (Tetrao parvirostris) male foraging, Kamchatka, Russia

Sergey Gorshkov / Black-billed Capercaillie (Tetrao parvirostris) male displaying, Kamchatka, Russia

Sergey Gorshkov / Black-billed Capercaillie (Tetrao parvirostris) male displaying and calling, Kamchatka, Russia