Tabular iceberg, Antarctic Ocean, Antarctica

Catherine's Park in February, Tsarske Seloe (Puskin), St. Petersburg, Russia

Koryaksky volcano seen beyond walkers on crater rim of Avacha volcano, Kamchatka, East Siberia, Russia

Hikers on rim of old crater, Avacha volcano, Kamchatka, East Siberia, Russia

View towards Liskamm and the Gorner Glacier, Gornergrat, Zermatt, Valais, Switzerland, Europe

Great-grey owl (Strix nebulosa) in flight, Finland

Great-grey owl (Strix nebulosa) in flight, Finland

Great-grey owl (Strix nebulosa) in flight, Finland

Great-grey owl (Strix nebulosa) in flight, Finland

Male black grouse (Lyrurus tetrix) fighting on snow covered field, Finland

Male black grouse (Lyrurus tetrix) fighting on snow covered field, Finland

Male black grouse (Lyrurus tetrix) landing on snow covered field, Finland

Golden eagle in flight over snow covered field, Finland, Europe

Adelie penguins, Antarctica

Snow covered log built house, Norway, Scandinavia, Europe

The Matterhorn, Zermatt, Switzerland, Europe

A sleek blue shark (Prionace glauca) cruises through the cold waters off Cape Cod, Massachusetts, in the Atlantic Ocean. These beautiful elasmobranchs are found throughout the world in both temperate and tropical seas and are a species listed as Near Thre

Adult bull southern elephant seal (Mirounga leonina) issuing a bellowing challenge at Gold Harbour on South Georgia, Polar Regions

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

Waterfall in the ice of Potter glacier, Tierra del Fuego, Chile, South America

View of glacial ice on Alexander Island in Franz Josef Land, Russia, Arctic Ocean, Eurasia

Lindblad Expeditions guests explore Cape Flora on Northbrook Island in Franz Josef Land, Russia, Arctic Ocean, Eurasia

Adult gentoo penguins (Pygoscelis papua), squabble at Booth Island, Antarctica, Southern Ocean, Polar Regions

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

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

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

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

Polar bear (Ursus Maritimus) on Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America

Polar bear (Ursus Maritimus) on Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America

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

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

Gentoo penguin (Pygoscelis papua) chicks at Jougla Point, Wiencke Island, Antarctica, Southern Ocean, Polar Regions

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

Close up of horned yak facing the camera while standing in snow, Himalayas, Nepal, Asia

Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead elephant seal pup at Royal Harbor, South Georgia

Female southern elephant seal (Mirounga leonina) with newborn pup on the beach in Stromness Bay, South Georgia Island

Female southern elephant seal (Mirounga leonina) with newborn pup on the beach in Stromness Bay, South Georgia Island

Adelie penguins on ice with dark skies, Antarctica, Polar Regions

Bull southern elephant seal (Mirounga leonina) on South Georgia Island, Southern Ocean

Bull southern elephant seal (Mirounga leonina) on South Georgia Island, Southern Ocean

Southern elephant seal (Mirounga leonina) pup, called weaners once their mothers stop nursing, South Georgia Island, Southern Ocean

Dead southern elephant seal (Mirounga leonina) pup being eaten by an Antarctic skua on South Georgia Island, Southern Ocean

Adult bull southern elephant seals (Mirounga leonina) fighting for breeding grounds on South Georgia Island, Southern Ocean

Chinstrap penguin (Pygoscelis antarctica) porpoising in Cooper Bay, South Georgia

Adult gentoo penguin (Pygoscelis papua) with minutes-old newly hatched chick at Gold Harbor on South Georgia

A small pod of killer whales (Orcinus orca) off the coast of South Georgia Island, Southern Ocean

Aerial view of snow covered fir trees, Poland

View of swans and ducks with City Hall in background in the city centre of Reykjavik in winter, Reykjavik, Iceland

View of swans and ducks with colourful buildings and city skyline in background in the city centre of Reykjavik in winter, Reykjavik, Iceland

View of swans and ducks with Iceland model building in the city centre of Reykjavik in winter, Reykjavik, Iceland

Adult sea otter (Enhydra lutris kenyoni) mother and pup in Inian Pass, Southeastern Alaska, United States of America

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

Johns Hopkins Glacier, Glacier Bay National Park in Southeast Alaska, United States of America

Gathering of at least two resident pods of killer whales (Orcinus orca) encountered near sunset, Johnstone Strait, British Columbia, Canada

View of Tjornin park, town and mountains on a sunny day in winter, Reykjavik, Iceland

View of waterfront buildings and Tjornin lake on a sunny day in winter, Reykjavik, Iceland

View of wildlife on Tjornin lake and Lutheran Free Church on a sunny day in winter, Reykjavik, Iceland

Adult fin whale (Balaenoptera physalus) carcass in Holmabukta off the northwest of the Svalbard Archipelago, Norway

Adult fin whale (Balaenoptera physalus) carcass in Holmabukta off the northwest of the Svalbard Archipelago, Norway

Adult long-tailed ducks (Clangula hyemalis) in breeding plumage in the Svalbard Archipelago, Norway

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

Adult common (northern) minke whale (Balaenoptera acutorostrata) sub-surface feeding in the Svalbard Archipelago, Norway

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

Adult bearded seal (Erignathus barbatus) swimming amongst the ice in the Svalbard Archipelago, Norway

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

Adult bearded seal (Erignathus barbatus) swimming amongst the ice in the Svalbard Archipelago, Norway

A view of Krossfjorden (Cross Fjord) on the northwestern side of Spitsbergen Island in the Svalbard Archipelago, Norway

Ice detail, River Etive, Rannoch Moor, Highland, Scotland, United Kingdom

Adult glaucous gull (Larus hyperboreus) near fin whale carcass in the Svalbard Archipelago, Norway

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

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

Adult Svalbard reindeer (Rangifer tarandus platyrhynchus) grazing within the town limits of Longyearbyen, Svalbard, Norway

Adult Svalbard reindeer (Rangifer tarandus platyrhynchus) grazing within the town limits of Longyearbyen, Svalbard, Norway

Adult male common eider ducks (Somateria mollissima) in breeding plumage in the Svalbard Archipelago, Norway

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

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

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

A cattle pond (livestock tank), partially frozen, Coconino National Forest Arizona, United States of America

A cattle pond (livestock tank), part frozen, Coconino National Forest, Apache Maid Mountain in the background, Arizona, United States of America

A young polar bear (Ursus maritimus) scavenging a fresh bearded seal kill recently vacated by old male that killed the seal, Svalbard, Norway

A well-scarred old male polar bear (Ursus maritimus), on a fresh bearded seal kill near Monacobreen Glacier, Svalbard, Norway

A mother polar bear (Ursus maritimus), and cub of the year leaving a fin whale carcass in Holmabukta in the Svalbard Archipelago, Norway

A mother polar bear (Ursus maritimus), and cub of the year leaving a fin whale carcass in Holmabukta in the Svalbard Archipelago, Norway

Two young polar bears (Ursus maritimus), feeding side-by-side on a fresh bearded seal kill on Spitsbergen, Svalbard, Norway

Two young polar bears (Ursus maritimus), feeding side-by-side on a fresh bearded seal kill on Spitsbergen, Svalbard, Norway

A mother polar bear (Ursus maritimus), and cub of the year feeding on a fin whale carcass in Holmabukta in the Svalbard Archipelago, Norway

Mother polar bear (Ursus maritimus) and cub-of-the-year disputing then allowing a male bear to feed on a fin whale, Svalbard Archipelago, Norway

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

Mother polar bear (Ursus maritimus) and cub-of-the-year disputing then allowing a male bear to feed on a fin whale, Svalbard Archipelago, Norway

Adult male polar bear (Ursus maritimus) drawn to a fin whale carcass in Holmabukta in the Svalbard Archipelago, Norway

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

Mother polar bear (Ursus maritimus) with cub of the year feeding near a fin whale carcass in Svalbard, Norway

Polar bear (Ursus maritimus), cub of the year, playing in the snow in Holmabukta in the Svalbard Archipelago, Norway

Mother polar bear (Ursus maritimus), with cub of the year in Holmabukta in the Svalbard Archipelago, Norway

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

Group of at least eight killer whales (Orcinus orca) surfacing off the coast of the island of Surtsey, southern Iceland

Adult bull southern elephant seal (Mirounga leonina) attempting to cool off by flinging sand on his back, South Georgia, Polar Regions