Long exposure of a sunset in Jökulsárlón, Iceland. 

A pair fish for Arctic charr (Salvelinus alpinus) in Svalbard, Norway. 

The aurora borealis reflecting in a forest lake in Gällivare, Sweden. 

An aerial photograph of a glacial river in Iceland. 

An emperor penguin family in Weddell Sea, Antarctica. Emperor penguins breed during the Antarctic winter, forming colonies of thousands on the open sea ice. 

Sunrise on the beach of the Jökulsárlón Glacier in Iceland. 

A walrus (Odobenus rosmarus) silts up the water while looking for mussels to feed on.

This image of rock ptarmigan (Lagopus muta) sitting on a large rock at the edge of a glacier in Nordenskiöldbreen in Svalbard. 

The aurora borealis in Reine a fishing village towards the tip of the Lofoten archipelago, above the Arctic circle, in Norway. 

Antarctic Giant Petrels (Macronectes giganteus) fighting over the carcass of a southern elephant seal pup on St Andrews Bay, South Georgia. The giant petrels have a shoulder lock, a wing adaptation that locks the wing in an outstretched position, allowing them to hold the wings out when gliding across the ocean without effort. When dealing with competitors on the beach they adopt this wings out position known as the ‘beach-master’. 

An iceberg that has washed ashore black beach in Breiðarmerkursandur, Iceland. 

A fleet of guillemots (Uria aalge) returning to their breeding grounds on Hornøya Island after wintering on the open sea in Varanger, Norway.

The icy interior of a glacier cave at the edge of the Turner Glacier that reflects the soft evening light of the mountain view outside, in Nunavut, Canada. 

A magnificent volcanic eruption shot from a helicopter in Holuhraun, Iceland.

A jellyfish glides past a north sea lion in the Bering Sea in the northern reaches of the Pacific Ocean. 

Aurora borealis and the Milky Way over Sørfugløya island in Norway.

Sergey Kokinskiy from Russia won a silver medal in the Antarctica category for this image of a penguin struggling against the wind and snow. 

Two young polar bears (Ursus maritimus) males sparring in Wapusk National Park, Canada. Usually solitary animals, this image was taken during the largest congregation of Polar Bears in October/November every year as they wait for Hudson Bay to freeze. 

The Milky Way shines over the Seven Strong Men Rock Formations in the Komi Republic, Russia. 

A polar bear (Ursus maritimus) family taking a break on packed sea ice in Alaska.