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A pink anemonefish, Amphiprion perideraion, swims above its beautiful host anemone in Wakatobi National Park, Indonesia.

A beautiful coral reef, dominated by colorful gorgonians, grows along the edge of Turneffe Atoll in the Caribbean Sea. This reef is part of the massive Mesoamerican Reef System, the second largest barrier reef on Earth.

Colorful chocolate chip sea stars, Protoreaster nodosus, cover the seafloor in a seagrass meadow in Wakatobi National Park, Indonesia.

Soft coral colonies, Sinularia sp., thrive on a reef found among the remote, tropical islands of Raja Ampat, Indonesia.

A vibrant soft coral, Dendronephthya sp., grows amid the remote, tropical islands of Raja Ampat, Indonesia.

Bright beams of sunlight descend into the shadows of a blue water mangrove forest in Raja Ampat, Indonesia.

A beautiful coral reef thrives in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

Garden coral, sponges, and other invertebrates grow in a shallow seagrass meadow in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

A beautiful coral reef thrives in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

A beautiful coral reef thrives in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

A beautiful coral reef thrives in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

A magnificent sea anemone, Heteractis magnifica, grows on a reef in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

A bleached magnificent sea anemone is found on a reef off the coast of Sulawesi in Indonesia. Bleaching is usually associated with higher than normal sea temperatures.

A brightly colored soft coral adorns prop roots in a blue water mangrove forest in Raja Ampat, Indonesia.

A school of blue-green damselfish, Chromis viridis, hovers amid the tropical islands of Raja Ampat, Indonesia.

A huge giant clam, Tridacna gigas, grows on a shallow coral reef amid the tropical islands of Raja Ampat, Indonesia.

A colorful soft coral adorns a giant clam, Tridacna sp., growing on a healthy reef in Raja Ampat, Indonesia.

A thick school of yellow-striped scad swims below a jetty amid the tropical islands of Raja Ampat, Indonesia.

A broadclub cuttlefish, Sepia latimanus, hovers over a healthy reef on the remote island of Teun in Indonesia's Banda Sea.

A black-banded sea krait, Laticauda semifasciata, swims over beautiful corals off the remote island of Manuk in the Banda Sea, Indonesia. This volcanic island is known as the island of the snakes.

A beautiful coral reef thrives in shallow water in Indonesia's Banda Sea. This part of eastern Indonesia is home to part of the world's greatest marine biodiversity.

A beautiful coral reef thrives in shallow water in Indonesia's Banda Sea. This part of eastern Indonesia is home to part of the world's greatest marine biodiversity.

Several pink anemones cluster on top of a coral outcropping providing homes for several anemone fish, Maldives.

Small pod of eight to ten 'Type A' Oceanic killer whales (Orcinus orca), hunting near Stanley, Falkland Islands, South America

Imperial shag (Phalacrocorax atriceps), returning to the nest on New Island in the Falkland Islands, South America

Adult black-browed albatross (Thalassarche melanophrys), pair in courtship display at nesting site on New Island, Falklands, South America

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

Southern giant petrel (Macronectes giganteus), feeding on a sheep carcass at West Point Island, Falkland Islands, South America

A rare adult melanistic king penguin (Aptenodytes patagonicus), returning from feeding at sea tin Fortuna Bay, South Georgia, Polar Regions

Adult Subantarctic Skua (Catharacta antarctica lonnbergi) on tussac at Salisbury Plain on South Georgia Island, Polar Regions

Wandering albatross (Diomedea exulans) chick at nest site on Prion Island in the Bay of Isles, South Georgia, Polar Regions

Northern giant petrel (Macronectes halli) attempting to eat a king penguin chick (Aptenodytes patagonicus), Gold Harbour, South Georgia, Polar Regions

Northern giant petrel (Macronectes halli) amongst king penguin chicks at Gold Harbour, South Georgia, Southern Ocean, Polar Regions

Battle-scarred beachmaster southern elephant seal (Mirounga leonina) bellowing a challenger, Peggotty Bluff, South Georgia, Polar Regions

Remnants of the abandoned Norwegian whaling station at Ocean Harbour, South Georgia Island, Polar Regions

Views of the abandoned whaling station in Stromness Bay on South Georgia in the Southern Ocean, Polar Regions

Antarctic shag (Phalacrocorax atriceps bransfieldensis), in flight with nesting material in its beak at Jougla Point, Antarctica, Polar Regions

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

Young adult bull southern elephant seal (Mirounga leonina) close up while swimming in glacier run off, South Georgia Island, Polar Regions

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

Hundreds of southern elephant seals (Mirounga leonina) hauled out onto the breeding beach at Gold Harbour, South Georgia, Polar Regions

Southern elephant seal (Mirounga leonina) bull holding adult female in the surf to mate with her, South Georgia, Polar Regions

Southern elephant seal (Mirounga leonina) bull holding adult female in the surf to mate with her, South Georgia, Polar Regions

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

Views of the wreck of the Guvernoren, a 20th century whale processing ship, in the Enterprise Islands, Antarctica, Polar Regions

Southern right whale (Eubalaena australis) adult female flukes-up to catch the wind in Puerto Pyramides, Argentina, South America

Southern right whale (Eubalaena australis) mother and calf near whale watching boat in Puerto Pyramides, Argentina, South America

Adult Magellanic penguin (Spheniscus magellanicus) at a breeding site on Peninsula Valdez, Patagonia, Argentina, South America

Adult humpback whales (Megaptera novaeangliae) flukes-up dive in Snow Pass, Southeast Alaska, Pacific Ocean, United States of America, North America

Glacial iceberg detail from ice calved off the LeConte Glacier, Southeast Alaska, Pacific Ocean, United States of America, North America

Adult bald eagle (Haliaeetus leucocephalus) on iceberg near Johns Hopkins Glacier, Southeast Alaska, United States of America, North America

Black-legged kittiwakes (Rissa tridactyla) on iceberg in Tracy Arm, Southeast Alaska, United States of America, North America

Black-legged kittiwake (Rissa tridactyla) feeding on small fish in Tracy Arm, Southeast Alaska, United States of America, North America

Views from the fishing town of Petersburg on Mitkof Island, Southeast Alaska, Pacific Ocean, United States of America, North America