Group of Walrus (Odobenus rosmarus) resting on an ice floe, Krasin Bay, Wrangel Island, UNESCO World Heritage Site, Chuckchi Sea, Chukotka, Russian Far East, Russia, Eurasia

Two mother polar bears (Ursus maritimus) with cubs of the year watch a male bear feeding on a fin whale carcass in Svalbard, Norway

Adult black-legged kittiwakes (Rissa tridactyla) on ice in the Svalbard Archipelago, Barents Sea, Norway

Ecotype Big B killer whales (Orcinus orca), surfacing amongst ice floes in the Lemaire Channel, Antarctica, Polar Regions

Black-legged kittiwakes (Rissa tridactyla) on ice floe, Lilliehook glacier in Lilliehook fjord, a branch of Cross Fjord, Spitsbergen, Svalbard Archipelago, Arctic, Norway, Scandinavia, Europe

Adult Adelie penguin (Pygoscelis adeliae) leaping from the sea onto ice floes near Heroina Island in the Weddell Sea, Antarctica. This penguin species is totally dependant on ice.

Drift Ice, Hokkaido, Japan

Group of Adelie penguins (Pygoscelis adeliae) on an iceberg, natural arch iceberg in the back, Paulet Island, Erebus and Terror Gulf, Antarctic Peninsula, Antarctica

Adelie Penguins (Pygoscelis Adeliae) Diving Between Two Ice Floes, Antarctica

Three Adelie penguins (Pygoscelis adeliae) watch another jumping between two ice floes. They have black heads and backs with white bellies. Shot with a Nikon D810 on Brown Bluff; Antarctica