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Adult gentoo penguins (Pygoscelis papua), squabble at Booth Island, Antarctica, Southern Ocean, Polar Regions
Chinstrap penguin (Pygoscelis antarctica), at breeding colony at Half Moon Island, Antarctica, Southern Ocean, Polar Regions
Friendly southern elephant seal (Mirounga leonina), weaner pup close up on the beach at Snow Island, Antarctica, Polar Regions
Adult leopard seal (Hydrurga leptonyx), hauled out on ice floe at Dorian Bay near the Antarctic Peninsula, Southern Ocean, Polar Regions
Brunnich's guillemot (Uria lomvia) in flight near breeding and nesting site at Cape Fanshawe in Svalbard, Norway, Arctic, Europe
Brunnich's guillemot (Uria lomvia) breeding and nesting site at Cape Fanshawe 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
Curious adult bull walrus (Odobenus rosmarus rosmarus) approach the ship at Moffen Island in the Svalbard Archipelago, Norway, Arctic, Europe
Adult bull walrus (Odobenus rosmarus rosmarus) hauled out on the beach in the Svalbard Archipelago, Norway, Arctic, Europe
Adult Svalbard reindeer (Rangifer tarandus platyrhynchus) grazing on tundra in the Svalbard Archipelago, Norway, Arctic, Europe
Wild Galapagos giant tortoise (Geochelone elephantopus) at Urbina Bay, Isabela Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Adult black-necked stilt (Himantopus mexicanus) wading and feeding in a brackish water lagoon on Floreana Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Galapagos fur seal (Arctocephalus galapagoensis) hauled out on lava flow in the Galapagos Islands, 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 yellow warbler (Dendroica petechia aureola) 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 with red gular pouch, on North Seymour Island, Galapagos Islands, UNESCO World Heritage Site, Ecaudor, South America
Black and white image of an Atlantic Puffin, Fratercula arctica, in Borgarfjaroarhofn, Iceland, Polar Regions
An Atlantic Puffin (Fratercula arctica), in Borgarfjaroarhofn, Iceland, Polar Regions
Blue-footed booby (Sula nebouxii) courtship behavior in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Adult red-footed booby (Sula sula) in flight in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
An adult Galapagos dove (Zenaida galapagoensis) on Espanola Island in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Galapagos sea lion (Zalophus wollebaeki) mother and pup on San Cristobal Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Young Galapagos sea lions (Zalophus wollebaeki) at play 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
A curious young polar bear (Ursus maritimus) approaches the National Geographic Explorer in the Svalbard Archipelago, Norway, Arctic, Europe
Guests from the Lindblad Expeditions ship National Geographic Sea Bird in Glacier Bay National Park, UNESCO World Heritage Site, Southeast Alaska, United States of America, North America
A curious young polar bear (Ursus maritimus) approaches the National Geographic Explorer in the Svalbard Archipelago, Norway, Arctic, Europe
Guest from the Lindblad Expeditions ship National Geographic Sea Bird on path beside a skull in Southeast Alaska, United States of America, North America
Adult voracious gecko (Gehyra vorax), at night on the Volivoli Resort grounds on Viti Levu, Fiji, South Pacific, Pacific
Red-vented bulbul (Pycnonotus cafer), at the Volivoli Resort grounds on Viti Levu, Fiji, South Pacific, Pacific
White-faced heron (Egretta novaehollandiae), looking for insects at the Volivoli Resort grounds on Viti Levu, Fiji, South Pacific, Pacific
Orange-breasted myzomela (Myzomela jugularis), 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
Adult Antarctic tern (Sterna vittata) resting on ship's rail near Tristan da Cunha, South Atlantic Ocean
Juvenile Antarctic tern (Sterna vittata) resting on ship's rail near Tristan da Cunha, South Atlantic Ocean
Antarctic fur seal pup (Arctocephalus gazella) on Prion Island in the Bay of Isles on South Georgia, Southern Ocean, Polar Regions
Antarctic fur seal pups (Arctocephalus gazella) playing in the surf at Salisbury Plain in the Bay of Isles on South Georgia, Polar Regions
Leucistic caused by lack of melanin, or blond Antarctic fur seal pup (Arctocephalus gazella) on South Georgia, 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) 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 penguins (Aptenodytes patagonicus) swimming near the nesting beach at Salisbury Plain, South Georgia, Polar Regions
Huge adult male leopard seal (Hydrurga leptonyx) hauled out on the beach at Salisbury Plain in the Bay of Isles, South Georgia, Polar Regions
Southern giant petrel (Macronectes giganteus) in flight against the sun near South Georgia, Southern Ocean, Polar Regions
Adult Commerson's dolphin (Cephalorhynchus commersonii), surfacing in Stanley Harbor in the Falkland Islands, South America
Adult striated caracara (Phalcoboenus australis) on Carcass Island in the Falkland Islands, South Atlantic Ocean, South America
Adult striated caracaras (Phalcoboenus australis) on Carcass Island in the Falkland Islands, South Atlantic Ocean, South America
Adult imperial shag (Phalacrocorax (atriceps) atriceps) in flight in the Falkland Islands, South Atlantic Ocean, South America
Gentoo penguin (Pygoscelis papua) adult with chick on Cuverville 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
Young Galapagos hawk (Buteo galapagoensis) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Galapagos sea lion (Zalophus wollebaeki) pup and curious bird, Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Antarctic fur seal bull (Arctocephalus gazella) on South Georgia, Southern Ocean, Polar Regions
Antarctic fur seal bull (Arctocephalus gazella) on South Georgia, Southern Ocean, Polar Regions
Antarctic fur seal bull (Arctocephalus gazella) on South Georgia, Southern Ocean, Polar Regions
Antarctic fur seal bull (Arctocephalus gazella) on South Georgia, 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
Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead elephant seal pup at Royal Harbor, South Georgia
Female southern elephant seal (Mirounga leonina) with newborn pup on the beach in Stromness Bay, South Georgia Island
Bull southern elephant seal (Mirounga leonina) on South Georgia Island, Southern Ocean
Bull southern elephant seal (Mirounga leonina) on South Georgia Island, Southern Ocean
Alligators feeding, Gator Country Wildlife Adventure Park, Beaumont, Texas, United States of America
Wood stork (Mycteria americana) big wading bird of the south Americas, scavenging on black sand turtle beach, Ostional, Guanacaste, Costa Rica
An adult rough-scaled python (Morelia carinata), found in a sandstone crevice on Bigge Island, Kimberley, Western Australia, Australia, Pacific
A Mute Swan (Cygnus olor), in the marshes at Ham Wall National Nature Reserve, one of the Avalon Marshes nature reserves, near Glastonbury, Somerset, England, United Kingdom, Europe
Atlantic Puffin (Fratercula arctica), on Skomer Island in July, a nature reserve off the coast of Pembrokeshire, Wales, United Kingdom, Europe
Atlantic Puffin (Fratercula arctica), on Skomer Island in July, a nature reserve off the coast of Pembrokeshire, Wales, United Kingdom, Europe
Atlantic Puffin (Fratercula arctica), on Skomer Island in July, a nature reserve off the coast of Pembrokeshire, Wales, United Kingdom, Europe
A Red Squirrel (Sciurus vulgaris), in conifer woodland on Brownsea Island, a nature reserve in Poole Harbour, Dorset, England, United Kingdom, Europe
Red-eyed tree frog (red-eyed leaf frog) (Agalychnis callidryas) sitting on leaf, Costa Rica
Long-tailed Silky-flycatcher (Ptiliogonys caudatus) feeding on Twoleaf nightshade berries, Costa Rica
Long-tailed Silky-flycatcher (Ptiliogonys caudatus), Costa Rica
Two Brown-hooded Parrots (Pyrilia haematotis) sitting on a branch, Costa Rica
Two Collared aracari (Pteroglossus torquatus) sitting on a mossy branch, Costa Rica
Adult rockhopper penguins (Eudyptes chrysocome chrysocome) at breeding and molting colony on New Island, Falkland Islands
Adult Magellanic oystercatcher (Haematopus leucopodus) on Carcass Island in the Falkland Islands
Tourist hand-feeding magnificent frigatebird (Fregata magnificens), at feeding station, Mesoamerican Barrier Reef, Belize
A pair of Mesoamerican sliders (Trachemys venusta), on New River near Lamanai, Belize
Northern (Steller) sea lions, (Eumetopias jubatus), hauled out on South Marble Island, Glacier Bay National Park, Alaska, United States of America
Adult sea otter (Enhydra lutris kenyoni) mother and pup in Inian Pass, Southeastern Alaska, United States of America
Adult sea otter (Enhydra lutris kenyoni) in kelp bed in Inian Pass, Southeastern Alaska, United States of America
Adult tufted puffin (Fratercula cirrhata) on the water at South Marble Island, Glacier Bay National Park, Alaska, United States of America
Adult humpback whale (Megaptera novaeangliae) tail throw among feeding whales in Southeast Alaska, United States of America
Adult Dall sheep (Ovis dalli) in Denali National Park, Alaska, United States of America
Adult Arctic ground squirrel (Spermophilus parryii) foraging in Denali National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) scratching its back on a tree at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America
View from Park Service platform where adult brown bears (Ursus arctos) forage for salmon, Katmai National Park, Alaska, United States of America
Adult fin whale (Balaenoptera physalus) sub-surface feeding in the rich waters off the Svalbard Archipelago, Norway
Adult white-beaked dolphin (Lagenorhynchus albirostris) surfacing in the Svalbard Archipelago, Norway
Brunnichs guillemot (Uria lomvia) in flight at Cape Fanshawe in the Svalbard Archipelago, Norway