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

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

Striated caracara (Phalcoboenus australis) feather detail, on Carcass Island in the Falkland Islands, South Atlantic Ocean, South America

Black-browed albatross (Thalassarche melanophrys) in flight on West Point Island, Falkland Islands, South Atlantic Ocean, South America

A lone adult emperor penguin (Aptenodytes forsteri) on sea ice in the Gullet between Adelaide Island and the Antarctic Peninsula, Antarctica, Polar Regions

Adult leopard seal (Hydrurga leptonyx) near Cuverville Island near the Antarctic Peninsula, Southern Ocean, Polar Regions

Adelie penguins (Pygoscelis adeliae) hauled out onto the ice near Adelaide Island, Antarctica, Polar Regions

Adult chinstrap penguins (Pygoscelis antarctica) mating 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 at breeding colony on Booth Island, Antarctica, Southern Ocean, 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) 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

Magellanic penguin (Spheniscus magellanicus), Magdalena Island, Magallanes Region, Punta Arenas, Chile, South America

Lava Lizard (microlophus) on Floreana island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Adult sanderling (Calidris alba) feeding on the tidal flat in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

The very colorful Galapagos land iguana (Conolophus subcristatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Male great frigatebird (Fregata minor) in breeding plumage in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Male great frigatebird (Fregata minor) in breeding plumage in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Surf breaking on lava shoreline at Gardner Bay on Espanola Island in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Wild Galapagos giant tortoises (Geochelone elephantopus) feeding on the upslope grasslands of Santa Cruz Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Lava lizard (Microlophus spp) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

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

Baleen whale skeleton, most likely a young Bryde's whale, on lava flow in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

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

Gentoo penguins (Pygoscelis papua) hauled out in Port Foster, inside the caldera at Deception Island, Antarctica, Polar Regions

Gentoo penguin (Pygoscelis papua) nesting colony at Jougla Point on Wiencke Island, Antarctica, Southern Ocean, Polar Regions

Adult female leopard seal (Hydrurga leptonyx) hauled out on an ice floe in Kayak Cove on Brabant Island, Antarctica, Polar Regions

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

King penguins (Aptenodytes patagonicus) at sunrise 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 penguins (Aptenodytes patagonicus) in downy plumage (okum boys) on South Georgia Island, Polar Regions

King penguins (Aptenodytes patagonicus) in downy plumage (okum boys) on South Georgia Island, Polar Regions

King penguins (Aptenodytes patagonicus) in downy plumage (okum boys) on South Georgia Island, Polar Regions

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

King penguin (Aptenodytes patagonicus) at sunrise on South Georgia Island, Southern Ocean, Polar Regions

Adult San Esteban spiny-tailed iguana (Ctenosaura conspicuosa), endemic to Isla San Esteban, Baja California, Mexico, North America

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

Yellow-footed gull (Larus livens), eggs in nest on Isla Coronado, Baja California Sur, Sea of Cortez, Mexico, North America

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

Extreme tidal range shown here at low tide as found on Bigge Island, Kimberley, Western Australia, Australia, Pacific

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

The introduced Perez's frog (Iberian waterfrog) (Iberian green frog) (Pelophylax perezi) on the island of Sao Miguel, Azores, Portugal, Europe

Adult black guillemot (Cepphus grylle) on Sumburgh Head, Mainland Island, Shetland Isles, Scotland, United Kingdom, Europe

Hard and soft corals and reef fish underwater on Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia

A school of bigeye trevally (Caranx sexfasciatus), Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia

A pair of spinecheek anemonefish (Premnas biaculeatus), Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia

A profusion of coral and reef fish on Batu Bolong, Komodo Island National Park, Indonesia, Southeast Asia, Asia

Adult striated caracara (Phalcoboenus australis), known locally as a Johnny Rook, Carcass Island, Falkland Islands, U.K. Overseas Protectorate

Adult imperial shag (Phalacrocorax atriceps) landing at nest site on New Island, Falkland Islands, U.K. Overseas Protectorate, South America

Adult Galapagos fur seal (Arctocephalus galapagoensis), hauled out on Santiago Island, Galapagos, Ecuador, South America

An adult Galapagos land iguana (Conolophus subcristatus) climbing tree on North Seymour Island, Galapagos, Ecuador, South America

Steller sea lion (Eumetopias jubatus), haul out, South Marble Island, Glacier Bay National Park, Alaska, United States of America, North America

Adult wandering albatross (Diomedea exulans) in flight near Prion Island, Bay of Isles, South Georgia, Polar Regions

Adult wandering albatross (Diomedea exulans) in flight near Prion Island, Bay of Isles, South Georgia, Polar Regions

Adult polar bear (Ursus maritimus) cleaning its fur from a recent kill on ice near Ellesmere Island, Nunavut, Canada, North America

Adult polar bear (Ursus maritimus), walking on open ice, Queen's Channel, Cornwallis Island, Nunavut, Canada, North America

Tufted puffin (Fratercula cirrhata) taking flight at South Marble Island, Glacier Bay National Park, Alaska, United States of America, North America

Adult Atlantic puffins (Fratercula arctica), gathering above the nest site on Grimsey Island, Iceland, Polar Regions

An adult common murre (Uria aalge), taking flight at St. Lazaria Island, Sitka Sound, Southeast Alaska, United States of America, North America

The Hall on the Island pavilion, Catherine Park, Pushkin (Tsarskoye Selo), near St. Petersburg, Russia, Europe

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

Adult chinstrap penguin (Pygoscelis antarcticus) walking in the snow on Half Moon Island, South Shetlands, Antarctica, Polar Regions

Two adult bull southern elephant seals (Mirounga leonina), fighting on the beach on Snow Island, Antarctica, Polar Regions

Adult fin whales (Balaenoptera physalus), feeding on krill near Coronation Island, South Orkney Islands, Antarctica, Polar Regions

A pair of adult southern fulmars (Fulmarus glacialoides), on nest at Peter I Island in the Bellingshausen Sea, Antarctica, Polar Regions

A pair of adult king penguins (Aptenodytes patagonicus), courtship display on Saunders Island, Falklands, South America

An adult broadclub cuttlefish (Sepia latimanus), off the reef on Bangka Island, near Manado, Indonesia, Southeast Asia

Adult Galapagos marine iguanas (Amblyrhynchus cristatus), basking on Fernandina Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

A pair of American flamingo (Phoenicopterus ruber) feeding on artesmia shrimp, Rabida Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Adult American flamingo (Phoenicopterus ruber) feeding on artesmia shrimp, Rabida Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

An adult Sally lightfoot crab (Grapsus grapsus), in Baltra, Bacha Beach on Santa Cruz Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Emperor penguin (Aptenodytes forsteri) and chick, Snow Hill Island, Weddell Sea, Antarctica, Polar Regions

Young humpback whale (Megaptera novaeangliae), breaching near Lincoln Island, Southeast Alaska, United States of America, North America

Rockhopper penguin (Eudyptes chrysocome) on a rocky coastline, the Neck, Saunders Island, Falkland Islands, South America

Adult polar bear (Ursus maritimus) emerging onto ice, Cumberland Peninsula, Baffin Island, Nunavut, Canada, North America

Adult polar bear (Ursus maritimus) on small ice floe, Cumberland Peninsula, Baffin Island, Nunavut, Canada, North America

An adult red cherry shrimp (Neocaridina davidi), out over the reef off Wohof Island, Raja Ampat, Indonesia, Southeast Asia, Asia

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

Sally lightfoot crab (Grapsus grapsus) preparing to shed its exoskeleton in Urbina Bay, Isabela Island, Galapagos Islands, Ecuador, South America

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

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

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

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

Adult bull southern elephant seal (Mirounga leonina) with females and pups at Gold Harbour on South Georgia Island, Polar Regions

Southern elephant seal (Mirounga leonina) challenger bull in the surf at Gold Harbour on South Georgia Island, Polar Regions

Adult brown bear pair (Ursus arctos) fishing for pink salmon at Pavlof Harbor on Chichagof Island, Southeast Alaska, United States of America, North America