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

Seagulls along the river Corrib with the Wolfe Tone Bridge in the background, Galway, Connemara, County Galway, Connacht, Republic of Ireland

An adult anhinga (Anhinga anhinga), taking flight on New River near the Mesoamerican archaeological site of Lamanai, Belize

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

Adult austral thrush (Turdus falklandii falklandii), in the tussock grass on Carcass Island in the Falkland Islands, South America

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

Imperial Shag (Phalacrocorax atriceps), pair exhibiting courtship behavior on New Island in the 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

Sunrise on king penguin (Aptenodytes patagonicus) at nesting and breeding colony at Salisbury Plain, South Georgia, Polar Regions

King penguin (Aptenodytes patagonicus) chicks (okum boys) at nesting colony at Salisbury Plain, South Georgia, Polar Regions

Adult king penguins (Aptenodytes patagonicus) amongst chicks (okum boys) at Salisbury Plain, South Georgia, Polar Regions

Creative motion blur image of adult king penguins (Aptenodytes patagonicus) returning to the sea on South Georgia, Polar Regions

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

A small group of reindeer (Rangifer tarandus) near the abandoned whaling station in Stromness Bay, South Georgia, Polar Regions

Brown capuchin monkey (Cebus apella) (Sapajus apella) on tree, Tambopata National Reserve, Puerto Maldonado, Tambopata Province, Madre de Dios, Peru, South America

Three Blue-headed parrots (Pionus menstruus) perching on tree, Tambopata National Reserve, Puerto Maldonado, Tambopata Province, Madre de Dios, Peru, South America

Lake Sandoval and Aguaje palms, Tambopata National Reserve, Puerto Maldonado, Madre de Dios, Peru, South America

Capped Heron (Pilherodius pileatus) perching on branch by Lake Sandoval, Tambopata National Reserve, Puerto Maldonado, Madre de Dios, Peru, South America

Lake Sandoval and Aguaje palms, Tambopata National Reserve, Puerto Maldonado, Madre de Dios, Peru, South America

Adelie penguin (Pygoscelis adeliae), leaping into the sea at Booth Island, Antarctica, Polar Regions

Southern elephant seal (Mirounga leonina) challenger bull head detail (notice shredded proboscis) at Gold Harbour, South Georgia, Polar Regions

Adult bull southern elephant seal (Mirounga leonina) stretching amongst king penguins 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

Southern elephant seal (Mirounga leonina) weaner pups sleeping on the beach at Gold Harbour on South Georgia, Polar Regions

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

Southern right whale (Eubalaena australis) flukes-up dive near whale watching boat in Puerto Pyramides, Argentina, South America

Dead and dying pink salmon (Oncorhynchus gorbuscha) gathering to spawn just outside of Sitka, Southeast Alaska, United States of America, North America

Adult humpback whales (Megaptera novaeangliae) co-operatively bubble-net feeding, Southeast Alaska, United States of America, North America

Chinstrap penguin (Pygoscelis antarctica), leaping at breeding colony at Half Moon Island, Antarctica, Southern Ocean, Polar Regions

Northern (Steller) sea lion (Eumetopias jubatus) hauled out in Inian Pass, Southeastern Alaska, Pacific Ocean, United States of America, North America

Weddell Seal (Leptonychotes weddellii), hauled out on ice at Half Moon Island, Antarctica, Southern Ocean, Polar Regions

A large pod of Gerlache Strait type B killer whales (Orcinus orca), traveling and socializing in Gerlache Strait, Antarctica, Polar Regions

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

An adult bull killer whale (Orcinus orca) surfacing in Johnstone Strait, British Columbia, Canada, Pacific Ocean, North America

An adult bull killer whale (Orcinus orca) surfacing in Johnstone Strait, British Columbia, Canada, Pacific Ocean, North America

A large stand of Arctic cotton (Eriophorum callitrix) in 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

Adult bull killer whale (Orcinus orca) surfacing in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America

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

Adult male polar bear (Ursus maritimus) on multi-year ice floes in Franz Josef Land, Russia, Arctic Ocean, Eurasia

Frog in the forest, French Guiana, Overseas department and region of France, French Guiana, South America

Chinstrap penguin (Pygoscelis antarctica), at breeding colony at Half Moon Island, Antarctica, Southern Ocean, Polar Regions

Curious crabeater seals (Lobodon carcinophaga), swimming near iceberg at Booth Island near the Antarctic Peninsula, Polar Regions

Galapagos Giant Tortoise (Chelonoidis chathamensis), can live for over 100 years, on San Cristobal island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Adult leopard seal (Hydrurga leptonyx), hauled out on ice floe at Dorian Bay near the Antarctic Peninsula, Southern Ocean, Polar Regions

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) feeding at the base of a glacier in the Svalbard Archipelago, Norway, Arctic, Europe

Adult black-legged kittiwakes (Rissa tridactyla) feeding at the base of a glacier 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 Arctic Skua (Stercorarius parasiticus), on ice floe in the Svalbard Archipelago, Norway, Arctic, Europe

A curious young polar bear (Ursus maritimus) on the ice 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

An old, emaciated adult male polar bear (Ursus maritimus) desperately searching for food in the Svalbard Archipelago, Norway, Arctic, Europe

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

Great frigatebird (Fregata minor) taking handouts from a fisherman in Puerto Ayora on Santa Cruz Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Captive Galapagos giant tortoise (Geochelone elephantopus) at the Charles Darwin Research Station, Galapagos, UNESCO World Heritage Site, Ecuador, South America

View of the Argentine base Almirante Brown, named after Guillermo Brown of the Argentine Navy, Paradise Bay, Antarctica, Polar Regions

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 on fish at the Puerto Ayora fish market, Santa Cruz Island, Galapagos, 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

Adult great blue heron (Ardea herodias cognata) hunting for green sea turtle hatchlings 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

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

Adult yellow warbler (Dendroica petechia aureola) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Adult Swallow-tailed gull (Creagrus furcatus) in flight in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Adult Swallow-tailed gull (Creagrus furcatus) in flight in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Scene of a fisherman on boat with pelicans in the port town of Puerto Ayora, Santa Cruz Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Galapagos brown pelican (Pelecanus occidentalis urinator) feeding in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Greater flamingos (Phoenicopterus ruber) foraging for small pink shrimp in saltwater lagoon in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Greater flamingos (Phoenicopterus ruber) foraging for small pink shrimp in saltwater lagoon in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Adult red-footed booby (Sula sula) being attacked in flight by a great frigatebird (Fregata minor) in the 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

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

Adult bull Galapagos sea lion (Zalophus wollebaeki) posturing on Fernandina Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Galapagos sea lion mother nursing pup (Zalophus wollebaeki) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

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

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

A curious young polar bear (Ursus maritimus) approaches the National Geographic Explorer in the Svalbard Archipelago, Norway, Arctic, Europe

Chinstrap penguin (Pygoscelis antarctica), at breeding colony at Half Moon Island, Antarctica, Southern Ocean, Polar Regions

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