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Magellanic penguins (Spheniscus magellanicus) at a breeding and molting site in Estancia San Lorenzo, Argentina

Magellanic penguin (Spheniscus magellanicus) at a breeding and molting site in Estancia San Lorenzo, Argentina

Underwater view of the reef along the circumference of the Great Blue Hole on Lighthouse Reef, UNESCO, Belize

Green sea turtle (Chelonia mydas), feeding on the sand near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize

A myriad of fish and coral underwater at Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Adult Atlantin puffin (Fratercula arctica) during breeding season, Isfjardardjup, Westfjords region, Northwestern Iceland

Adult Atlantin puffin (Fratercula arctica) during breeding season on Sumburgh Head, Shetlands, Scotland, United Kingdom

Northern gannet (Morus bassanas), on the wing at the cliffs of Noss, Shetland Islands, Scotland, United Kingdom

Adult Eurasian oystercatcher (Haematopus ostralegus ostralegus) in full breeding plumage at Isfjardardjup, Iceland

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

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

Adult killer whale (Orcinus orca) surfacing with kelp on its flukes in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America

Adult killer whale (Orcinus orca) surfacing with kelp on its flukes in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America

Adult black-browed albatross (Thalassarche melanophrys), in flight returning to nesting site on West Point Island, Falklands, South America

Adult Peale's Dolphin (Lagenorhynchus australis), bow-riding near New Island in the Falkland Islands, South America

Antarctic tern (Sterna vittata), on the wreck of the Guvernoren in the Enterprise Islands, Antarctica, Southern Ocean, Polar Regions

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

Southern right whale (Eubalaena australis) mother surfacing near whale watching boat in Argentina, South America

Adult female sea otter (Enhydra lutris kenyoni) swimming in Inian Pass, Southeastern Alaska, Pacific Ocean, United States of America, North America

Adult sea otter (Enhydra lutris kenyoni) mother with her pup on her chest in Inian Pass, Southeastern Alaska, Pacific Ocean, United States of America, North America

A rare sighting of an adult female sea otter (Enhydra lutris kenyoni) hauled out on land in Inian Pass, Southeastern Alaska, Pacific Ocean, United States of America, North America

Harbor seals (Phoca vitulina) hauled out on a submerged log in Misty Fjord National Monument, Southeast Alaska, United States of America, North America

Icebergs near the Antarctic Peninsula during the summer months, Antarctica, Southern Ocean, Polar Regions

Adult Dall's porpoise (Phocoenoides dalli) surfacing with characteristic rooster tail splash in Johnstone Strait, British Columbia, Canada, North America

Adult dovekies (Little Auk) (Alle alle) at their breeding site amongst scree slopes at Rubini Rock, Tikhaya Bay, Hooker Island, Franz Josef Land, Russia, Arctic Ocean, Eurasia

Adult dovekie (Little Auk) (Alle alle) at their breeding site amongst scree slopes at Rubini Rock, Tikhaya Bay, Hooker Island, Franz Josef Land, Russia, Arctic Ocean, Eurasia

Adult dovekies (Little Auk) (Alle alle) at their breeding site amongst scree slopes at Rubini Rock, Tikhaya Bay, Hooker Island, Franz Josef Land, Russia, Arctic Ocean, Eurasia

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

A young killer whale (Orcinus orca) surfacing in Glacier Bay National Park, Southeast Alaska, United States of America, Pacific Ocean, North America

A view of the Russian Orthodox Solovetsky Monastery founded in 1436 by two monks on Bolshoy Island, UNESCO World Heritage Site, Onega Bay, Arkhangel Oblast, Russia, Arctic, Europe

Adult black-legged kittiwake (Rissa tridactyla) in flight near Alexander Island in Franz Josef Land, Russia, Eurasia

Seagull nesting on the Lihou islet, Island of Guernsey, Bailiwick of Guernsey, British Crown dependency, English Channel, Europe

Coast along Grand Greve Bay at La Coupee, Sark island, Bailiwick of Guernsey, British Crown dependency, English Channel, Europe

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

California sea lions (Zalophus californianus), grouped together on a channel marker off Newport Beach, California, United States of America, North America

Adult black-legged kittiwakes (Rissa tridactyla) feeding at the base of a glacier in the Svalbard Archipelago, Norway, Arctic, Europe

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

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

Adult black-legged kittiwakes (Rissa tridactyla) feeding at the base of a glacier in the Svalbard Archipelago, Norway, Arctic, Europe

Juvenile puffin (Fratercula arctica) on the water near the island of Bolscheoya in the Svalbard Archipelago, Norway, Arctic, Europe

Brunnich's guillemot (Uria lomvia) breeding and nesting site at Cape Fanshawe in the Svalbard Archipelago, Norway, Arctic, Europe

Adult female common eider ducks (Somateria mollissima) swimming with ducklings of Edgeoya in Svalbard, Norway, Arctic, Europe

Adult arctic tern (Sterna paradisaea) feeding on small fish on Spitsbergen Island in the Svalbard Archipelago, Norway, Arctic, Europe

An adult polar bear (Ursus maritimus) leaping from ice floe to ice floe in the Svalbard Archipelago, Norway, Arctic, Europe

Curious adult bull walrus (Odobenus rosmarus rosmarus) approach the ship at Moffen Island in the Svalbard Archipelago, Norway, Arctic, Europe

Adult bull walrus (Odobenus rosmarus rosmarus) hauled out on the beach in the Svalbard Archipelago, Norway, Arctic, Europe

Adult bull walrus (Odobenus rosmarus rosmarus) hauled out on the beach in the Svalbard Archipelago, Norway, Arctic, Europe

Scenic view of Leon Dormido (Sleeping Lion) Island off San Cristobal Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Lava and ash floes in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

The endemic Galapagos marine iguana (Amblyrhynchus cristatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

The endemic Galapagos marine iguana (Amblyrhynchus cristatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

The endemic Galapagos marine iguana (Amblyrhynchus cristatus) feeding underwater in the Galapagos, UNESCO World Heritage Site, Ecuador, South America

The endemic Galapagos marine iguana (Amblyrhynchus cristatus) swimming in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

The endemic Galapagos marine iguana (Amblyrhynchus cristatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Galapagos fur seal (Arctocephalus galapagoensis) hauled out on lava flow in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Adult great blue heron (Ardea herodias cognata) feeding on green sea turtle hatchlings, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Adult great blue heron (Ardea herodias cognata) feeding on green sea turtle hatchlings, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Spotted eagle rays (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Galapagos penguin (Spheniscus mendiculus) feeding underwater on small baitfish in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Galapagos penguin (Spheniscus mendiculus) feeding underwater on small baitfish in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Adult blue-footed booby (Sula nebouxii) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Young Galapagos sea lions (Zalophus wollebaeki) at play underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Adult gentoo penguin (Pygoscelis papua), porpoising for swimming speed near the Antarctic Peninsula, Southern Ocean, Polar Regions

A 'forest' of Staghorn (Acropora species) hard corals, on a coral reef in Gaafu Dhaalu atoll, Maldives

Subantarctic fur seal (Arctocephalus tropicalis) hauled out on the shore of Nightingale Island, Tristan da Cunha Island Group, South Atlantic Ocean

Adult wandering albatross (Diomedea exulans) in flight near the Tristan da Cunha Group, South Atlantic Ocean

Juvenile Antarctic tern (Sterna vittata) resting on ship's rail near Tristan da Cunha, South Atlantic Ocean

Tourists at Green Sea Turtle (Chelonia mydas) nesting site at night on Long Beach on Ascension Island, Tropical Atlantic Ocean, South Atlantic Ocean

Antarctic fur seal pups (Arctocephalus gazella) near the abandoned whaling station at Stromness Bay on South Georgia, Polar Regions

Adult South Georgia Pipit (Anthus antarcticus) feeding at low tide on Prion Island, Bay of Isles, South Georgia, Polar Regions

Antarctic fur seal pups (Arctocephalus gazella) playing in the kelp on Prion Island in the Bay of Isles on South Georgia, Polar Regions

Antarctic fur seal pups (Arctocephalus gazella) near the abandoned whaling station at Stromness Bay on South Georgia, Polar Regions

Leucistic caused by lack of melanin, or blond Antarctic fur seal pup (Arctocephalus gazella) on South Georgia, Polar Regions

King penguin (Aptenodytes patagonicus) detail at breeding and nesting colony at St. Andrews Bay on South Georgia, Southern Ocean, Polar Regions

King penguin (Aptenodytes patagonicus) adult and chick at breeding and nesting colony at Salisbury Plain, South Georgia, Polar Regions

Adelie penguins (Pygoscelis adeliae), at breeding colony at Brown Bluff on the eastern side of the Antarctic Peninsula, Antarctica, Polar Regions

Views of the church at Grytviken, Swedish for Pot Cove, on South Georgia in the South Atlantic, Polar Regions

Southern giant petrel (Macronectes giganteus) in flight against the sun near South Georgia, Southern Ocean, Polar Regions

Adult light-mantled sooty albatross (Phoebetria palpebrata) on the wing in Elsehul on South Georgia, Southern Ocean, Polar Regions

Adult light-mantled sooty albatross (Phoebetria palpebrata) on the wing in Elsehul on South Georgia, Southern Ocean, Polar Regions

Adult black-browed albatross (Thalassarche melanophrys) in Elsehul on South Georgia, Southern Ocean, Polar Regions

Adult Commerson's dolphin (Cephalorhynchus commersonii) surfacing, Carcass Island in the Falkland Islands, South America

Black-browed albatross (Thalassarche melanophrys) chick, close-up, on the nest at nesting site on New Island, Falklands, South America

Black-browed albatross (Thalassarche melanophrys) adult feeding chick at nesting site on West Point Island, Falkland Islands, South America

Adult male Antarctic fur seal (Arctocephalus gazella) hauled out on ice near Brown Bluff, Antarctica, Polar Regions

Iceberg and coast around the Antarctic Peninsula during the summer months, Southern Ocean, Polar Regions

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