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

Adelie penguin (Pygoscelis adeliae) adult feeding chick at breeding colony at Brown Bluff, Antarctica, Polar Regions

First year Adelie penguin (Pygoscelis adeliae) chicks at breeding colony at Brown Bluff, Antarctica, Polar Regions

Chinstrap penguin (Pygoscelis antarctica) breeding colony at Baily Head on Deception Island, Antarctica, Southern Ocean, Polar Regions

Chinstrap penguin (Pygoscelis antarctica) breeding colony at Baily Head on Deception Island, Antarctica, Southern Ocean, Polar Regions

Chinstrap penguin (Pygoscelis antarctica) breeding colony at Baily Head on Deception Island, Antarctica, Southern Ocean, Polar Regions

Gentoo penguin (Pygoscelis papua) adult with chicks on Cuverville Island, Antarctica, Southern Ocean, Polar Regions

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

King penguin (Aptenodytes patagonicus) breeding and nesting colony on South Georgia Island, Southern Ocean, Polar Regions

Male southern elephant seal (Mirounga leonina) pups mock fighting on South Georgia Island, Southern Ocean

Heermann's gull (Larus heermanni), at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North Anerica

Sandwich Terns (Sterna sandivicensis), in their breeding colony in June, on Brownsea Island, a nature reserve in Poole Harbour, Dorset, England, United Kingdom, Europe

Adelie penguin (Pygoscelis adeliae), breeding colony at Brown Bluff, Antarctic Sound, Antarctica, Polar Regions

King penguins (Aptenodytes patagonicus), at breeding colony in Gold Harbor, South Georgia, Polar Regions

Adelie penguin (Pygoscelis adeliae), adult feeding a chick at a breeding colony on Pourquoi Pas Island, Antarctica, Polar Regions

Gentoo penguin (Pygoscelis papua), at breeding colony during a snowstorm, Brown Bluff, Antarctic Sound, Antarctica, Polar Regions

King penguin (Aptenodytes patagonicus) breeding colony at St. Andrews Bay, South Georgia, UK Overseas Protectorate, Polar Regions

A colony of South American sea lions (Otaria flavescens), on small islets in Lapataya Bay, Tierra del Fuego, Argentina, South America

A colony of green barrel sea squirts (Didemnum molle), out over the reef off Bangka Island, Indonesia, Southeast Asia, Asia

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

Adult king penguin (Aptenodytes patagonicus) amongst chicks at breeding colony at Gold Harbour, South Georgia Island, Polar Regions

Common guillemot (Uria aalge) nesting on Bear Island (Bjornoya) in the Svalbard Archipelago, Norway, Arctic, Europe

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) detail at breeding and nesting colony at St. Andrews Bay on South Georgia, Southern Ocean, Polar Regions

King penguin (Aptenodytes patagonicus) breeding and nesting colony at Salisbury Plain in the Bay of Isles, South Georgia, Southern Ocean, 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) with introduced reindeer at breeding and nesting colony at St. Andrews Bay on South Georgia, Southern Ocean, Polar Regions

Adult elegant terns (Thalasseus elegans), at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North America

Adult macaroni penguins (Eudyptes chrysolophus) plunging into the sea leaving their breeding colony at Elsehul on South Georgia, Southern Ocean, Polar Regions

Adult macaroni penguins (Eudyptes chrysolophus) plunging into the sea leaving their breeding colony at Elsehul on South Georgia, Southern Ocean, Polar Regions

Adult macaroni penguins (Eudyptes chrysolophus) porpoising for speed while traveling to breeding colony, South Georgia, Polar Regions

First year Adelie penguin (Pygoscelis adeliae) chicks at breeding colony at Brown Bluff, Antarctica, Polar Regions

Chinstrap penguin (Pygoscelis antarctica) breeding colony at Baily Head on Deception Island, Antarctica, Southern Ocean, Polar Regions

Gentoo penguin (Pygoscelis papua) breeding colony on Booth Island, Antarctica, Southern Ocean, Polar Regions

Gentoo penguin (Pygoscelis papua) adult with chicks at breeding colony on Booth Island, Antarctica, Southern Ocean, Polar Regions

Gentoo penguin (Pygoscelis papua) breeding colony at Petermann Island, Antarctica, Southern Ocean, Polar Regions

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

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

King penguin (Aptenodytes patagonicus) breeding and nesting colony on South Georgia Island, Southern Ocean, Polar Regions

King penguin (Aptenodytes patagonicus) breeding and nesting colony on South Georgia Island, Southern Ocean, Polar Regions

Male southern elephant seal (Mirounga leonina) pups mock fighting on South Georgia Island, Southern Ocean

A gentoo penguin (Pygoscelis papua) breeding colony on Pleneau Island in early season, Antarctica, Polar Regions

Black-browed albatross (Thalassarche melanophris), chick at breeding colony on Saunders Island, Falklands, South America

Adult imperial shag (Leucocarbo atriceps), in flight at a breeding colony on Saunders Island, Falklands, South America

Adult Imperial shags (Phalacrocorax atriceps) at breeding colony on small islets just outside Ushuaia, Beagle Channel, Argentina, South America

World's largest colony of Frigate Birds (Fregata magnificens) in the lagoon, Barbuda, Antigua and Barbuda, Leeward Islands, West Indies, Caribbean, Central America

Adult king penguins (Aptenodytes patagonicus) returning from sea to the breeding colony at Salisbury Plain, South Georgia, Polar Regions

Adult king penguins (Aptenodytes patagonicus) returning from sea to the nesting colony at Salisbury Plain, South Georgia, Polar Regions

Adult chinstrap penguin (Pygoscelis antarctica), carrying rock in its beak at breeding colony at Half Moon Island, Antarctica, Polar Regions

Black-legged Kittiwakes (Rissa tridactyla) flying and nesting, Diskobukta, Edgeoya Island, Svalbard Archipelago, Norway, Arctic

Adult gentoo penguin (Pygoscelis papua), feeding chicks at Brown Bluff near the Antarctic Peninsula, Southern Ocean, Polar Regions

King penguin (Aptenodytes patagonicus) breeding and nesting colony at Salisbury Plain in the Bay of Isles, South Georgia, Southern Ocean, Polar Regions

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

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

King penguins (Aptenodytes patagonicus) swimming near the beach at breeding and nesting colony at Salisbury Plain in the Bay of Isles, South Georgia, Southern Ocean, Polar Regions

Adelie penguin (Pygoscelis adeliae) adult feeding chick at breeding colony at Brown Bluff, Antarctica, Polar Regions

Gentoo penguin (Pygoscelis papua) adult with chicks at breeding colony on Booth Island, Antarctica, Southern Ocean, Polar Regions

Gentoo penguin (Pygoscelis papua) chicks covered with mud and guano on Cuverville Island, Antarctica, Southern Ocean, Polar Regions

Gentoo penguin (Pygoscelis papua) chicks covered with mud and guano on Cuverville Island, Antarctica, Southern Ocean, Polar Regions

Gentoo penguin (Pygoscelis papua) chicks covered with mud and guano on Cuverville Island, Antarctica, Southern Ocean, Polar Regions

Gentoo penguin colony (Pygoscelis papua) in front of a recently collapsed glacier, Damoy Point, Wiencke Island, Antarctica, Polar Regions

Group of King Penguins (Aptenodytes patagonicus) entering the ocean, Salisbury Plain, South Georgia Island, Antarctic, Polar Regions

Elegant terns (Thalasseus elegans), breeding colony on Isla Rasa, Baja California, Mexico, North America

Adelie penguins (Pygoscelis adeliae), leaping near breeding colony, Heroina Island, Danger Island Group, Antarctica, Polar Regions

Gentoo penguins (Pygoscelis papua), at breeding colony during a snowstorm, Brown Bluff, Antarctic Sound, Antarctica, Polar Regions

King penguin (Aptenodytes patagonicus), oakum boys at breeding colony in Gold Harbour, South Georgia, South Atlantic, Polar Regions

Breeding elegant terns (Thalasseus elegans) return to colony on Isla Rasita at sunset, Baja California Norte, Mexico, North America

Breeding elegant terns (Thalasseus elegans) return to colony on Isla Rasa, Baja California Norte, Mexico, North America

King penguin (Aptenodytes patagonicus) breeding colony at St. Andrews Bay, South Georgia, UK Overseas Protectorate, Polar Regions

King penguin (Aptenodytes patagonicus) breeding colony at St. Andrews Bay, South Georgia, UK Overseas Protectorate, Polar Regions

Hooker's sea lions (Phocarctos hookeri) colony, Cannibal Bay, the Catlins, South Island, New Zealand, Pacific

King penguins (Aptenodytes patagonicus) at breeding and nesting colony at Salisbury Plain, South Georgia, UK Overseas Protectorate, Polar Regions

Adult gentoo penguin (Pygoscelis papua) amongst king penguins (Aptenodytes patagonicus) at nesting and breeding colony at Gold Harbour on South Georgia Island, Southern Ocean, Polar Regions

Adult red-footed booby (Sula sula) returning to the nest site with nest building material in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Black-legged Kittiwakes (Rissa tridactyla) flying and nesting, Diskobukta, Edgeoya Island, Svalbard Archipelago, Norway, Arctic

Adult macaroni penguins (Eudyptes chrysolophus) plunging into the sea leaving their breeding colony at Elsehul on South Georgia, Southern Ocean, Polar Regions

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

King penguin (Aptenodytes patagonicus) breeding and nesting colony on South Georgia Island, Southern Ocean, Polar Regions

King penguin (Aptenodytes patagonicus) breeding and nesting colony on South Georgia Island, Southern Ocean, Polar Regions

Imperial shag (Leucocarbo atriceps), breeding colony on small offshore islets near Ushuaia, Argentina, South America

King penguins (Aptenodytes patagonicus) at breeding and nesting colony at Salisbury Plain, South Georgia, UK Overseas Protectorate, Polar Regions

California sea lion bulls (Zalophus californianus), hauled out on a small islet off San Marcos Island, Sea of Cortez, Mexico, North America

Adult king penguin (Aptenodytes patagonicus) amongst chicks at breeding colony at Gold Harbour, South Georgia Island, Polar Regions

Gentoo penguin colony (Pygoscelis papua) in front of a recently collapsed glacier, Damoy Point, Wiencke Island, Antarctica, Polar Regions

Adelie penguin (Pygoscelis adeliae), with chicks at breeding colony at Brown Bluff, Antarctic Peninsula, Antarctica, Polar Regions

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

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

King penguins (Aptenodytes patagonicus) swimming near the nesting beach at Salisbury Plain, South Georgia, Polar Regions

Guadalupe fur seals (Arctocephalus townsendi), at new haul out on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America