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Adult brown bear pair (Ursus arctos) mock-fighting at Scidmore Cut in Glacier Bay National Park, Alaska, United States of America
Adult brown bears (Ursus arctos) feeding on humpback whale carcass in Glacier Bay National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) feeding on humpback whale carcass in Glacier Bay National Park, Alaska, United States of America
Adult brown bear (Ursus arctos) shaking water from its fur near whale carcass in Glacier Bay National Park, Alaska, United States of America
Adult coyote (Canis latrans) in Denali National Park, Alaska, United States of America
Adult Dall sheep (Ovis dalli) in Denali National Park, Alaska, United States of America
Adult grizzly bear (Ursus arctos) mother with cubs in Denali National Park, Alaska, United States of America
Adult caribou (Rangifer tarandus) in Denali National Park, Alaska, United States of America
Mated bald eagle (Haliaeetus leucocephalus) pair on nest near 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) 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 bears (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 bears (Ursus arctos) disputing fishing rights 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) courtship behaviour, Brooks River, Katmai National Park near Bristol Bay, 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 brown bears (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 in the Brooks River, Katmai National Park, Alaska, United States of America
Adult dovekie (Alle alle alle) breeding area on the island of Bolscheoya in the Svalbard Archipelago, Norway
Adult fin whale (Balaenoptera physalus) sub-surface feeding in the rich waters off the Svalbard Archipelago, Norway
Adult bearded seal (Erignathus barbatus) swimming amongst the ice in the Svalbard Archipelago, Norway
Adult bearded seal (Erignathus barbatus) swimming amongst the ice in the Svalbard Archipelago, Norway
Adult white-beaked dolphin (Lagenorhynchus albirostris) surfacing in the Svalbard Archipelago, Norway
Adult black-legged kittiwakes (Rissa tridactyla) on ice in the Svalbard Archipelago, Barents Sea, Norway
Adult Svalbard reindeer (Rangifer tarandus platyrhynchus) grazing within the town limits of Longyearbyen, Svalbard, Norway
Adult red phalarope (Phalaropus fulicarius) in the Svalbard Archipelago, Norway
Adult Arctic skua (Stercorarius parasiticus) in flight in the Svalbard Archipelago, Norway
Adult great skua (Stercorarius skua) being harassed by Arctic terns (Sterna paradisaea) guarding their nest sites, Svalbard, Norway
Adult black-legged kittiwakes (Rissa tridactyla) on ice in the Svalbard Archipelago, Barents Sea, Norway
Adult black-legged kittiwakes (Rissa tridactyla) in flight in the Svalbard Archipelago, Barents Sea, Norway
Adult male polar bear (Ursus maritimus), on multi-year ice floes off the eastern coast of Spitsbergen in the Svalbard, Norway
Adult polar bear (Ursus maritimus) with a freshly killed ringed seal, PUnited States of America hispida, in the Svalbard Archipelago, Norway
Adult buck Timor rusa deer (Cervus timorensis), Komodo National Park, Komodo Island, Indonesia, Southeast Asia, Asia
An adult spinner dolphin (Stenella longirostris), leaping in the waters off the Kalpitiya Peninsula, Sri Lanka, Asia
Adult polar bear (Ursus maritimus) in Holmabukta on the northwest coast of Spitsbergen in the Svalbard Archipelago, Norway
Adult polar bear (Ursus maritimus), on multi-year ice floes off the coast of Edgeoya, Svalbard, Norway
Adult Atlantic puffin (Fratercula arctica) during breeding season on tiny Grimsey Island, Iceland
Adult Atlantin puffin (Fratercula arctica) during breeding season, Isfjardardjup, Westfjords region, Northwestern Iceland
Adult Atlantin puffin (Fratercula arctica) during breeding season, Isfjardardjup, Westfjords region, Northwestern Iceland
Adult Atlantic puffin (Fratercula arctica) during breeding season on tiny Grimsey Island, Iceland
Adult Atlantin puffin (Fratercula arctica) during breeding season, Isfjardardjup, Westfjords region, Northwestern Iceland
View of traditional and contemporary Chinese architecture in Yu Garden, Shanghai, China, Asia
Adult black guillemot (Cepphus grylle) in summer plumage near Vigur Island in Isafjardardjup Bay, Iceland
Adult whooper swan (Cygnus cygnus), pair on nest near Lake Myvatn, Iceland
Adult Eurasian Wigeon (Anas penelope) in breeding plumage on Lake Myvatn, Iceland
Adult male hooded seal (Cystophora cristata) hauled out on pack-ice in seasof Denmark Strait, between Iceland and Greenland
Adult harlequin duck (Histrionicus histrionicus) in full breeding plumage in the calm waters of Lake Myvatn, Iceland
Adult humpback whale (Megaptera novaeangliae), surfacing near researchers in Zodiac at sunset, Iceland
Adult humpback whale (Megaptera novaeangliae), flukes-up dive in Isafjardardjup Bay, Iceland
An adult male mudskipper, subfamily Oxudercinae, displaying to other males on the Hunter River, Kimberley, Western Australia, Australia, Pacific
An adult wild saltwater crocodile (Crocodylus porosus) in the Hunter River in Mitchell River National Park, Kimberley, Western Australia, Australia, Pacific
Lion (Panthera leo) demonstrating the flehmen response, Ngorongoro Conservation Area, UNESCO World Heritage Site, Serengeti, Tanzania, East Africa, Africa
Adult tomato clownfish (Amphiprion frenatus), Mengiatan Island, Komodo National Park, Flores Sea, Indonesia, Southeast Asia, Asia
Adult Galapagos land iguana (Conolophus subcristatus), feeding in Urbina Bay, Isabela Island, Galapagos, Ecuador, South America
Adult female elk (Cervus canadensis) on String Lake, Grand Teton National Park, Wyoming, United States of America, North America
An adult American red squirrel (Tamiasciurus hudsonicus), Leigh Lake, Grand Teton National Park, Wyoming, United States of America, North America
An adult female leopard (Panthera pardus), South Luangwa National Park, Zambia, Africa
An adult sea otter (Enhydra lutris) resting on its back in the harbor at Kodiak, Kodiak Island, Alaska, United States of America, North America
An adult sea otter (Enhydra lutris) resting on its back in the harbor at Kodiak, Kodiak Island, Alaska, United States of America, North America
Tourists with long tailed Macaque monkey in Sacred Monkey Forest Sanctuary, Ubud, Kecamatan Ubud, Kabupaten Gianyar, Bali, Indonesia, South East Asia, Asia
An adult Smith's bush squirrel (Paraxerus cepapi) in the Save Valley Conservancy, Zimbabwe, Africa
Whale watcher with California gray whale (Eschrichtius robustus), San Ignacio Lagoon, Baja California Sur, Mexico, North America
Adult polar bear (Ursus maritimus), cleaning its fur from a recent kill on ice near Ellesmere Island, Nunavut, Canada, North America
Adult Atlantic walrus (Odobenus rosmarus), on the beach in Musk Ox Fjord, Ellesmere Island, Nunavut, Canada, North America
A woman and her son in the branches of one of the oldest Live Oaks in the Outer Banks of North Carolina, Nags Head, North Carolina, United States of America, North America
Adult Atlantic puffin (Fratercula arctica), returning to the nest site with fish (sand eels) for its chick on Grimsey Island, Iceland, Polar Regions
An adult yellow warbler (Setophaga petechia), at Puerto Egas on Santiago Island, Galapagos, Ecuador, South America
An adult Galapagos mockingbird (Mimus parvulus), with an ant in Urbina Bay, Isabela Island, Galapagos, Ecuador, South America
An adult gentoo penguin (Pygoscelis papua), with chicks at Brown Bluff, Antarctic Sound, Antarctica, Polar Regions
An adult gentoo penguin (Pygoscelis papua), feeding a chick at Brown Bluff, Antarctic Sound, Antarctica, Polar Regions
An adult gentoo penguin (Pygoscelis papua), feeding a chick at Brown Bluff, Antarctic Sound, Antarctica, Polar Regions
Adult brown falcon (Falco berigora), on perch in Cape Range National Park, Western Australia, Australia, Pacific
Humpback whale (Megaptera novaeangliae), adult breaching on Ningaloo Reef, Western Australia, Australia, Pacific
Nouakchott Camel Market, Nouakchott, Mauritania, West Africa, Africa
Adult green sea turtle (Chelonia mydas), feeding on algae near Fernandina Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
An adult bluestreak goby (Valenciennea strigata), on the reef off Kri Island, Raja Ampat, Indonesia, Southeast Asia
View of tropical Spiny Lobster, Grand Bay, Mauritius, Indian Ocean, Africa
Adult brown pelicans (Pelecanus occidentalis), plunge diving for fish, Isla Carmen, Baja California Sur, Mexico, North America
Giant snow sculpture at the Snow Sculpture Festival, Harbin, Heilongjiang, China, Asia
Woman of the Mundari tribe cleaning a cow, South Sudan, Africa
Man washing himself in cow pee, Mundari tribe, South Sudan, Africa
View of tourists watching young Steenboks on game drive in Kruger National Park, South Africa, Africa
View of a visitor feeding an Ostrich at Safari Ostrich Farm, Oudtshoorn, Western Cape, South Africa, Africa
Goad herd in the highlands of Eritrea, Africa
Canoe trip with swans on Lake Srovinaitis around Ginuciai, Aukstaitija National Park, Lithuania, Europe
An adult wandering albatrosss (Diomedea exulans) in flight in the Drake Passage, Argentina, South America
An adult northern giant petrel (Macronectes halli) in flight in the Drake Passage, Argentina, South America
An adult American red squirrel (Tamiasciurus hudsonicus), in Yellowstone National Park, Wyoming, United States of America, North America
Adult light-mantled sooty albatross (Phoebetria palpebrata) in flight in the Drake Passage, Antarctica, Polar Regions
Antarctic fur seal (Arctocephalus gazella) male defending territory, Stromness Harbor, South Georgia, UK Overseas Protectorate, Polar Regions
An adult great egret (Ardea alba) on left, and snowy egret (Egretta thula) on right, Rio El Dorado, Amazon Basin, Peru, South America
An adult long-tailed hermit (Phaethornis superciliosus), in Nauta Cano at night, Pacaya-Samiria Reserve, Nauta, Peru, South America