Unusual window formation in iceberg showing Booth Island in the background on the western side of the Antarctic Peninsula, Antarctica, Polar Regions

Gentoo penguin (Pygoscelis papua) hauled out in Port Foster, inside the caldera at Deception Island, Antarctica, Polar Regions

Adult black-legged kittiwakes (Rissa tridactyla) on ice near Alexander Island in Franz Josef Land, Russia, Arctic Ocean, Eurasia

A lone adult emperor penguin (Aptenodytes forsteri) on sea ice in the Gullet between Adelaide Island and the Antarctic Peninsula, Antarctica, Polar Regions

A lone adult emperor penguin (Aptenodytes forsteri) on sea ice in the Gullet between Adelaide Island and the Antarctic Peninsula, Antarctica, Polar Regions

Views of the eastern side of the Antarctic Peninsula in the Weddell Sea, Antarctica, Polar Regions

First year sea ice forming floes in Antarctic Sound, Southern Ocean, Polar Regions

Curious walrus (Odobenus rosmarus rosmarus) near Apollo Island in Franz Josef Land, Russia, Arctic Ocean, Eurasia

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

Adelie penguins (Pygoscelis adeliae), in snow storm at breeding colony at Brown Bluff, Antarctic Peninsula, Antarctica, Polar Regions

Adelie penguins (Pygoscelis adeliae) in snowstorm at Brown Bluff on the Antarctic Peninsula in the Weddell Sea, Antarctica, Polar Regions

A view of Cape Tegetthoff on Hall (Gallya) Island in Franz Josef Land, Russia, Arctic Ocean, Eurasia

Gentoo penguins (Pygoscelis papua) nesting colony almost buried by snow during snow storm at Brown Bluff, Antarctica, Polar Regions

Adelie penguin (Pygoscelis adeliae) in snowstorm at Brown Bluff on the Antarctic Peninsula in the Weddell Sea, Antarctica, Polar Regions

Adelie penguin (Pygoscelis adeliae) in snowstorm at Brown Bluff on the Antarctic Peninsula in the Weddell Sea, Antarctica, Polar Regions

Grise Fjord, most northern community in America, Nunavut, Canadian Arctic, Canada, North America

Adult Weddell seal (Leptonychotes weddellii) hauled out on ice near the Antarctic Peninsula, Southern Ocean, Polar Regions

Adelie penguin (Pygoscelis adeliae) in snowstorm at Petermann Island, Antarctica, Polar Regions

A frosty morning in the Langdale Valley in the Lake District National Park, Cumbria, England, United Kingdom, Europe