Ingo Arndt / Sun rising over ice formations on Lake Baikal. Siberia, Russia. February 2019.

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 / 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