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Adult black-legged kittiwake (Rissa tridactyla) in flight near Alexander Island in Franz Josef Land, Russia, Arctic Ocean, Eurasia
Adult black-legged kittiwake (Rissa tridactyla) in combat with a second kittiwake near Alexander Island, Franz Josef Land, Russia, Arctic Ocean, Eurasia
Antiguan Anole Lizard (Anolis Leachii), Bermuda, North Atlantic, North America
View of calm seas and reflected mountains surrounding Paradise Bay on the western side of the Antarctic Peninsula, Polar Regions
Southern elephant seals (Mirounga leonina), hauled out for their annual catastrophic molt (moult) on the beach at Snow Island, Antarctica, Polar Regions
Adult chinstrap penguin (Pygoscelis antarctica), carrying rock in its beak at breeding colony at Half Moon Island, Antarctica, Polar Regions
Chinstrap penguin (Pygoscelis antarctica), at breeding colony at Half Moon Island, Antarctica, Southern Ocean, Polar Regions
Chinstrap penguins (Pygoscelis antarctica), breeding colony at Half Moon Island, Antarctica, Southern Ocean, Polar Regions
Adult gentoo penguin (Pygoscelis papua), amongst Adelie penguins (Pygoscelis adeliae), at Brown Bluff, Antarctica, Polar Regions
Chinstrap penguins (Pygoscelis antarctica), ecstatic display at breeding colony at Half Moon Island, Antarctica, Polar Regions
Adult chinstrap penguin (Pygoscelis antarctica), carrying rock in its beak at breeding colony at Half Moon Island, Antarctica, Polar Regions
Praying Mantis, Bunia, Ituri, Democratic Republic of Congo, Africa
Adult black-legged kittiwakes (Rissa tridactyla) feeding at the base of a glacier in the Svalbard Archipelago, Norway, Arctic, Europe
An adult ivory gull (Pagophila eburnea) on ringed seal kill on Spitsbergen 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
Curious adult bull walrus (Odobenus rosmarus rosmarus) approach the ship at Moffen Island in the Svalbard Archipelago, Norway, Arctic, Europe
Adult Svalbard reindeer (Rangifer tarandus platyrhynchus) grazing within the town limits of Longyearbyen, Spitsbergen, Svalbard, Norway, Arctic, Europe
Adult Svalbard reindeer (Rangifer tarandus platyrhynchus) grazing on tundra in the Svalbard Archipelago, Norway, Arctic, Europe
Schooling yellow-tailed surgeonfish (Prionurus punctatus), underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Lava lizard (Microlophus spp) in the Galapagos Islands Archipelago, UNESCO World Heritage Site, Ecuador, South America
Lava lizard (Microlophus spp) in the Galapagos Islands 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
Spotted eagle rays (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, 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
Spotted eagle ray (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, 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
Male Great frigatebird (Fregata minor) in breeding plumage with red gular pouch, on North Seymour Island, Galapagos Islands, UNESCO World Heritage Site, Ecaudor, South America
Adult red-footed booby (Sula sula) in the Galapagos Island Archipelago, 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
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
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
Vanikoro flycatcher (Myiagra vanikorensis), looking for insects at the Volivoli Resort grounds on Viti Levu, Fiji, South Pacific, Pacific
Adult brown booby (Sula leucogaster), on post on the northeast coast of Viti Levu, Fiji, South Pacific, Pacific
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
Polar bear (Ursus Maritimus) on Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America
Whale bone on a beach, Baffin island, Nunavut, Canadian Arctic, Canada, North America
Adult South Georgia Pipit (Anthus antarcticus) feeding at low tide on Prion Island, Bay of Isles, South Georgia, Polar Regions
King penguin (Aptenodytes patagonicus) adult and chick at breeding and nesting colony at Salisbury Plain, South Georgia, 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), in snow storm at breeding colony at Brown Bluff, Antarctic Peninsula, Antarctica, Polar Regions
Adelie penguins (Pygoscelis adeliae), at breeding colony at Brown Bluff on the eastern side of the Antarctic Peninsula, Antarctica, Polar Regions
The carcass of an eradicated reindeer (Rangifer tarandus) in Fortuna Bay, South Georgia, Polar Regions
Adult Commerson's dolphin (Cephalorhynchus commersonii) surfacing, Carcass Island in the Falkland Islands, South America
Black-browed albatross (Thalassarche melanophrys) chick on the nest at nesting site on New Island, Falklands, South America
Elephants (Loxodonta africana) at sunset, Chobe National Park, Botswana, Africa
Great white egret (Ardea alba), Zimanga Game Reserve, South Africa, Africa
A lone adult emperor penguin (Aptenodytes forsteri) on sea ice in the Gullet between Adelaide Island and the Antarctic Peninsula, Antarctica, Polar Regions
Adult brown skuas (Catharacta antarctica) feeding on a penguin carcass near the Antarctic peninsula, Antactica, Polar Regions
Adult cape petrels (Daption capense) feeding near Deception Island, Antarctica, Southern Ocean, Polar Regions
Adult female leopard seal (Hydrurga leptonyx) hauled out on ice at Brown Bluff near the Antarctic Peninsula, Antarctica, Polar Regions
Adult female leopard seal (Hydrurga leptonyx) hauled out on ice at Brown Bluff near the Antarctic Peninsula, Antarctica, Polar Regions
Adult Weddell seal (Leptonychotes weddellii) hauled out on ice near the Antarctic Peninsula, Southern Ocean, Polar Regions
An adult bull among a pod of about 20 killer whales (Orcinus orca) in Antarctic Sound near the Antarctic Peninsula, Polar Regions
Adelie penguin (Pygoscelis adeliae) breeding colony at Brown Bluff on the eastern side of the Antarctic Peninsula, Antarctica, Polar Regions
Adelie penguin (Pygoscelis adeliae) on ice floe with leopard seal 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) chick chasing adult for food at Hannah Point on Livingston Island, Antarctica, Polar Regions
Gentoo penguin (Pygoscelis papua) chicks covered with mud and guano on Cuverville Island, Antarctica, Southern Ocean, Polar Regions
South American sea lions (Otaria flavescens) hauled out on small rocky islet just outside Ushuaia, Argentina, South America
Adult great egret (Ardea alba egretta) feeding at low tide 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) 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), foot detail, Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) on Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) on Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) on Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) on Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
The endemic Galapagos marine iguana (Amblyrhynchus cristatus) on Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Gentoo penguins (Pygoscelis papua) nesting colony almost buried by snow during snow storm at Brown Bluff, Antarctica, Polar Regions
Adelie penguin (Pygoscelis adeliae) on ice near Devil Island in the Weddell Sea near the Antarctic Peninsula, Antarctica, Polar Regions
Adelie penguin (Pygoscelis adeliae) in snowstorm at Brown Bluff on the Antarctic Peninsula in the Weddell Sea, Antarctica, Polar Regions
Chinstrap penguins (Pygoscelis antarctica) ashore at Useful Island, Antarctica, Polar Regions
Antarctic fur seal pup (Arctocephalus gazella) on South Georgia, Southern Ocean, Polar Regions
Antarctic fur seal bull (Arctocephalus gazella) on South Georgia, 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
King penguin (Aptenodytes patagonicus) breeding and nesting colony, and seals, South Georgia Island, Southern Ocean, Polar Regions
King penguins (Aptenodytes patagonicus) in downy plumage (okum boys) on South Georgia Island, Polar Regions
King penguin (Aptenodytes patagonicus) in downy plumage (okum boys) on South Georgia Island, Polar Regions
Views of Gold Harbor on South Georgia Island, Southern Ocean
Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead fur seal pup at St. Andrews Bay, South Georgia
Skuas (Catharacta antarctica) and female southern elephant seal with newborn pup near abandoned whaling station, Stromness Bay, South Georgia
Penguins walk by Southern elephant seal (Mirounga leonina) pup, called a weaner, South Georgia Island, Southern Ocean
An adult mangrove swallow (Tachycineta albilinea), on New River near the Mesoamerican archaeological site of Lamanai, Belize
Southern elephant seal (Mirounga leonina) mating behavior on South Georgia Island, Southern Ocean
Adult gentoo penguin (Pygoscelis papua) with minutes-old newly hatched chick at Gold Harbor on South Georgia
Adult gentoo penguin (Pygoscelis papua) feeding minutes-old newly hatched chick at Gold Harbor on South Georgia
An adult eastern osprey (Pandion haliaetus cristatus), in flight over Montgomery Reef, Kimberley, Western Australia, Australia, Pacific
A young saltwater crocodile (Crocodylus porosus), sunning itself on the banks of Porosus Creek, Kimberley, Western Australia, Australia, Pacific
An adult Pacific reef heron (Egretta sacra), hunting for prey on Montgomery Reef, Kimberley, Western Australia, Australia, Pacific
Adult rockhopper penguins (Eudyptes chrysocome chrysocome) at breeding and molting colony on New Island, Falkland Islands
Adult rockhopper penguins (Eudyptes chrysocome chrysocome) at breeding and molting colony on New Island, Falkland Islands
Adult rockhopper penguins (Eudyptes chrysocome chrysocome) at breeding and molting colony on New Island, Falkland Islands
Adult Patagonian crested ducks (Lophonetta specularioides specularioides) feeding at low tide on Carcass Island, Falkland Islands
Southern Right Whale (Eubalaena australis) adult surfacing near Puerto Pyramides, Peninsula Valdez, Argentina