Melting facade of an iceberg, Antarctic Peninsula, Antarctica, Polar Regions

View of snow covered trees, mountains and Dolonne from Courmayeur in winter, Courmayeur, Aosta Valley, Italian Alps, Italy

View of snow covered Aosta Valley from Pavillon du Mont Frety in winter, Courmayeur, Aosta Valley, Italian Alps, Italy

Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

Glacial iceberg detail from ice calved off the LeConte Glacier near Petersberg, Southeast Alaska, United States of America

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

View of geysers at Geysir Hot Springs in winter, Western Region, Iceland

View of Gullfoss Waterfall on the Hvita River in winter, Western Region, Iceland

View of Gullfoss Waterfall on the Hvita River in winter, Western Region, Iceland

View of Gullfoss Waterfall on the Hvita River in winter, Western Region, Iceland

View of Gullfoss Waterfall on the Hvita River in winter, Western Region, Iceland

View of Gullfoss Waterfall on the Hvita River in winter, Western Region, Iceland

Continental drift between North American and Eurasian tectonic plates, Thingvellir National Park, UNESCO, in winter, Western Region, Iceland

Continental drift between North American and Eurasian tectonic plates, Thingvellir National Park, UNESCO, in winter, Western Region, Iceland

View of snow covered landscape in Thingvellir National Park, UNESCO, in winter, Western Region, Iceland

Harp seal (Pagophilus groenlandicus), hauled out on the pack-ice in between Iceland and Greenland in the Denmark Strait, Denmark

Icy meltwater flows down the Chekhung valley with views of Ama Dablam to the left and Taboche to the right, Khumbu Region, Nepal, Himalayas, Asia

Gentoo penguin (Pygoscelis papua) colony above icy Neko Harbour, early morning, Graham Land, Antarctic Continent, Antarctica, Polar Regions

Sun shines through the mist, icy Neumayer Channel between Anvers Island and Wiencke Island, Antarctic Peninsula, Antarctica, Polar Regions

A retreating glacier, pouring down from the Vatnajokull icecap, in Skaftafell National Park, southern Iceland, Polar Regions

Polar bear on ice looking at camera, Svalbard and Jan Mayen, Norway, Polar Regions

Floating icebergs, Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, 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

Blue ice inside iceberg, Antarctica, Polar Regions

Views of the Errera Channel, between the west coast of Antarctica and Ronge Island, Antarctica, Polar Regions

Brunnichs guillemot (Uria lomvia) in flight at Cape Fanshawe in the Svalbard Archipelago, Norway

A curious young polar bear (Ursus maritimus), approaches ship on Spitsbergen in the Svalbard Archipelago, Norway

Young male polar bear (Ursus maritimus), feeding on a fin whale carcass in Holmabukta in the Svalbard Archipelago, Norway

Adult polar bear (Ursus maritimus), on multi-year ice floes off the coast of Edgeoya, Svalbard, Norway

View of geysers at Geysir Hot Springs in winter, Western Region, Iceland

Continental drift between North American and Eurasian tectonic plates, Thingvellir National Park, UNESCO, in winter, Western Region, Iceland

View of tidewater glacier cave found deep inside Neko Harbor on the western side of the Antarctic Peninsula, Polar Regions

Aerial of the Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions

Floating icebergs in the Nuuk Icefjord, Western Greenland, Denmark, Polar Regions

Mountainous fjord, Kulusuk, Greenland, Denmark, Polar Regions

Adult gentoo penguins (Pygoscelis papua), returning and coming from the sea at Booth Island, Antarctica, Southern Ocean, Polar Regions

Aerial of an iceberg in the Nuuk Icefjord, Western Greenland, Denmark, Polar Regions

Expedition ship Polar Star operating from Ushuaia, Argentina to the Antarctic Peninsula in Antarctica, Southern Ocean, Polar Regions

Aerial drone view of particular ice textures formed in the Svinafellsjokull glacier following global warming, Iceland, Polar Regions

Adult bearded seal (Erignathus barbatus) hauled out on the ice in the Svalbard Archipelago, Norway

Adult bearded seal (Erignathus barbatus) hauled out on the ice in the Svalbard Archipelago, Norway

A view of Isfjorden (Ice fjord) on the western side of Spitsbergen Island in the Svalbard Archipelago, Norway

A curious young polar bear (Ursus maritimus), approaches the ship on Spitsbergen in the Svalbard Archipelago, Norway

A curious young polar bear (Ursus maritimus), approaches the ship on Spitsbergen in the Svalbard Archipelago, Norway

Adult polar bear (Ursus maritimus) in Holmabukta on the northwest coast of Spitsbergen in the Svalbard Archipelago, Norway

Young curious female polar bear (Ursus maritimus), on fast ice near Hinlopen Strait in the Svalbard Archipelago, Norway

A spectacular glacier pouring down off the Vatnajokull icecap, Svinafellsjokull Glacier, Skaftafell National Park, Iceland, Polar Regions

Pack Ice Type B killer whales (Orcinus orca), finding a leopard seal (Hydrurga leptonyx), on an ice floe in Antarctica, Polar Regions

Waterfall near the Eqi glacier, Ilulissat, Western Greenland, Denmark, Polar Regions

Floating icebergs in the Nuuk Icefjord, Western Greenland, Denmark, Polar Regions

Aerial of a glacier, Kulusuk, Greenland, Denmark, Polar Regions

Adelie penguin losing down feathers on ice, Antarctica, Polar Regions

Icebergs with dark skies, Antarctica, Polar Regions

Sun shines through the mist, icy Neumayer Channel between Anvers Island and Wiencke Island, Antarctic Peninsula, Antarctica, Polar Regions

Melting glacial ice, carved from the Vatnajokull icecap, on the beach at Jokulsarlon, on the south coast of Iceland, Polar Regions

Views of Gold Harbor on South Georgia Island, Southern Ocean

Whale blow (spout) and icy mountains, low lying mist, evening sun, Bransfield Strait, off South Shetland Islands, Antarctica, Polar Regions

Sun shines through the mist, icy Neumayer Channel between Anvers Island and Wiencke Island, Antarctic Peninsula, Antarctica, Polar Regions

Aerial view of car on icy road and illuminated headlamps driving in the snowcapped forest, at dawn, Akaslompolo, Kolari, Pallas-Yllastunturi National Park, Lapland region, Finland, Europe

Melting ice at the foot of a retreating glacier, Svinafellsjokull, Skaftafell National Park, southern Iceland, Polar Regions

A retreating glacier, pouring down from the Vatnajokull icecap, in Skaftafell National Park, southern Iceland, Polar Regions

An iconic Icelandic landscape, an ice-filled lagoon fed by the Vatnajokull icecap, at Jokulsarlon, on the south coast of Iceland, Polar Regions

A spectacular glacier pouring down off the Vatnajokull icecap, Svinafellsjokull Glacier, Skaftafell National Park, Iceland, Polar Regions

A retreating glacier, pouring down from the Vatnajokull icecap, in Skaftafell National Park, southern Iceland, Polar Regions

Reflections in icy sea of snow covered mountain, on the west coast of the Antarctic Peninsula, Antarctica, Polar Regions

Melting glacial ice, carved from the Vatnajokull icecap, on the beach at Jokulsarlon, on the south coast of Iceland, Polar Regions

Melting glacial ice, carved from the Vatnajokull icecap, on the beach at Jokulsarlon, on the south coast of Iceland, Polar Regions

Icebergs from the Jokulsarlon glacial lagoon washed up on a nearby black volcanic sand beach from the North Atlantic Ocean, Iceland, Polar Regions

A glacier pouring down off the Vatnajokull icecap, the Fjallsjokull Glacier and Fjallsarlon lagoon, near Jokulsarlon, Iceland, Polar Regions

Overhead view of a car driving on empty, icy and slippery road with illuminated headlamps, Akaslompolo, Kolari, Pallas-Yllastunturi National Park, Lapland region, Finland, Europe

Melting glacial ice, carved from the Vatnajokull icecap, on the beach at Jokulsarlon, on the south coast of Iceland, Polar Regions

An iconic Icelandic landscape, an ice-filled lagoon fed by the Vatnajokull icecap, at Jokulsarlon, on the south coast of Iceland, Polar Regions

View from above of a car travelling icy road in the middle of the frozen forest covered with snow, Akaslompolo, Kolari, Pallas-Yllastunturi National Park, Lapland region, Finland, Europe

Snowmobiling in the arctic alps in the Arctic Circle near Holt in the region of Tromso, Northern Norway

Ice fishing on frozen lake in the arctic alps in the Arctic Circle on Ringvassoya Island in the region of Tromso, Northern Norway

Arctic alps in Ovre Dividal National Park in the Arctic Circle region of Tromso, Northern Norway

Drilling a hole in the ice while fishing on frozen lake in the Arctic Circle on Ringvassoya Island in the region of Tromso, Northern Norway

Ice fishing on frozen lake in the arctic alps in the Arctic Circle on Ringvassoya Island in the region of Tromso, Northern Norway

Lichen in the Arctic Circle on Ringvassoya Island in the region of Tromso, Northern Norway

Ice fishing on frozen lake in the arctic alps in the Arctic Circle on Ringvassoya Island in the region of Tromso, Northern Norway

Snowmobiling in the arctic alps in the Arctic Circle near Holt in the region of Tromso, Northern Norway

Ice-fishing on frozen lake in the Arctic Circle on Ringvassoya Island in the region of Tromso, Northern Norway

Tourists hiking by frozen lake in the Arctic Circle on Ringvassoya Island in the region of Tromso, Northern Norway

Ice fishing on frozen lake in the arctic alps in the Arctic Circle on Ringvassoya Island in the region of Tromso, Northern Norway

Drilling a hole in the ice while fishing on frozen lake in the Arctic Circle on Ringvassoya Island in the region of Tromso, Northern Norway

Ice fishing on frozen lake in the arctic alps in the Arctic Circle on Ringvassoya Island in the region of Tromso, Northern Norway

Couple ice- fishing on frozen lake in the Arctic Circle on Ringvassoya Island in the region of Tromso, Northern Norway

Pitstop for snowmobiling group among arctic alps in the Arctic Circle near Holt in the region of Tromso, Northern Norway

Arctic wilderness in Ovre Dividal National Park in the Arctic Circle region of Tromso, Northern Norway

Minke whale. Balaenoptera acutorostrata. Minke whale in brash ice, danko bay, antarctica

View through an icy pressure ridge of emperor penguin colony on Weddell Sea, Dawson Lambton Glacier, Antarctica, Polar Regions

Icebergs, antarctica. Paradise bay

Chinstrap penguin (Pygoscelis antarctica) chick head detail at colony on Useful Island near the Antarctic Peninsula. There are an estimated 2 million breeding pairs of chinstrap penguins in the Antarctic peninsula region alone, perhaps as many as 7.5 million breeding pairs in all of Antarctica. Their name derives from the narrow black band under their heads which makes it appear as if they are wearing black helmets, making them one of the most easily identified types of penguin. Other names for them are "Ringed Penguins", "Bearded Penguins", and "Stonecracker Penguins" due to their harsh call. They grow to 68 cm (27 in). The average adult weight of a Chinstrap Penguin is 4.5 kg (10 lbs). Weight can range from 3 to 6 kg (6.6-13.2 lbs), with males being slightly larger and weight varying based on where the penguin is in the breeding cycle. Their diet consists of krill, shrimp, and fish. On land they build circular nests from stones, and lay two eggs, which are incubated by both the male and the female for shifts of five to ten days. They can also breed on icebergs, though they prefer non-icy conditions. The chicks hatch after about 35 days, and have fluffy gray backs and white fronts. The chicks stay in the nest for 20?30 days before they go to join a creche. At around 50?60 days old, they moult, gaining their adult plumage and go to sea. The Chinstrap Penguin was first described by German naturalist Forster in 1781. Its specific epithet was often seen as antarctica, however a 2002 review determined the genus Pygoscelis was masculine, and hence the correct binomial name is Pygoscelis antarcticus.

Perito Moreno Glacier and Lago Argentino in Los Glaciares National Park near El Calafate, Argentina. A UNESCO World Heritage Site in the Patagonia region of South America. At right is Cordon Reichert.

Detail images of the Perito Moreno Glacier in Los Glaciares National Park in the Patagonia region of Argentina, at the southern tip of South America. A UNESCO World Heritage Site in Patagonia.

Perito Moreno Glacier and Lago Argentino in Los Glaciares National Park near El Calafate, Argentina. A UNESCO World Heritage Site in the Patagonia region of South America. At right is Cordon Reichert with the peak of Cerro Moreno at left.

A panoramic view of Perito Moreno Glacier in Los Glaciares National Park near El Calafate, Argentina. A UNESCO World Heritage Site in the Patagonia region of South America. At left is Cerro Moreno and the Cordon Reichert at right. In the background are Cerro Gardener, Teniente Iglesias and Cerro Dos Picos.

The jagged face of Perito Moreno Glacier and Lago Argentino in Los Glaciares National Park near El Calafate, Argentina. A UNESCO World Heritage Site in the Patagonia region of South America. Icebergs from calving ice from the glacier float in the lake. In the distance is Cerro Gardener.

The jagged face of Perito Moreno Glacier and Lago Argentino in Los Glaciares National Park near El Calafate, Argentina. A UNESCO World Heritage Site in the Patagonia region of South America. Icebergs from calving ice from the glacier float in the lake. In the distance at left is Cerro Gardener.

Aerial of people on the frozen Lake Steinhude in winter, Wilhelmstein island, Hannover region, Lower Saxony, Germany