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Taro fields in Hanalei National Wildlife Refuge, Hanalei Valley, Kauai, Hawaii, United States of America, Pacific
Bull elk (Cervus canadensis) in the snow, National Elk Refuge, Jackson, Wyoming, United States of America, North America
Blackback male Mountain Gorilla (Gorilla g. beringei), Virunga Volcanoes, Rwanda, Africa
Female Mountain Gorilla (Gorilla g. beringei), Virunga Volcanoes, Rwanda, Africa
Golden-crowned Sifaka (Propithecus tattersalli), an endangered species, Daraina, Northern Madagascar, Africa
Golden-crowned Sifaka (Propithecus tattersalli), an endangered species, feeding on tree, Daraina, Northern Madagascar, Africa
Female Mountain Gorillas (Gorilla g. beringei) with infant, Virunga Volcanoes, Rwanda, Africa
Golden-crowned Sifaka (Propithecus tattersalli), an endangered species, on tree, Daraina, Northern Madagascar, Africa
Verreaux's Sifaka (Propithecus verreauxi) all white juvenile sitting on forest ground, Berenty Reserve, Southern Madagascar, Africa
Ring-tailed Lemurs (Lemur catta) mother with baby on back walking, Berenty, Southern Madagascar, Africa
Ring-tailed Lemur (Lemur catta) sitting on tree, Berenty, Southern Madagascar, Africa
Ring-tailed Lemurs (Lemur catta) mother with baby on back walking, Berenty, Southern Madagascar, Africa
Ring-tailed Lemur (Lemur catta) portrait, Berenty, Southern Madagascar, Africa
American Crocodiles (Crocodylus acutus), Rio Tarcoles, Carara Wildlife Refuge, Costa Rica, Central America
Verreaux's Sifaka (Propithecus verreauxi), hopping on ground, Berenty Reserve, Southern Madagascar, Africa
Taro fields in Hanalei National Wildlife Refuge, Hanalei Valley, Kauai, Hawaii, United States of America, Pacific
Common snipe (Gallinago gallinago), Arapaho National Wildlife Refuge, Colorado, United States of America, North America
Ring-tailed Lemur (Lemur catta) on ground, Berenty, Southern Madagascar, Africa
Hanalei National Wildlife Refuge, Hanalei Valley, Kauai, Hawaii, United States of America, Pacific
Ring-tailed Lemur (Lemur catta) on tree, Berenty, Southern Madagascar, Africa
American Crocodiles (Crocodylus acutus), Rio Tarcoles, Carara Wildlife Refuge, Costa Rica, Central America
Golden-crowned Sifaka (Propithecus tattersalli), an endangered species, on tree, Daraina, Northern Madagascar, Africa
Verreaux's Sifaka (Propithecus verreauxi) feeding on tree, Berenty Reserve, Southern Madagascar, Africa
Ring-tailed Lemur (Lemur catta) sunbathing on tree, Berenty, Southern Madagascar, Africa
Historic Kilauea Lighthouse on Kilauea Point National Wildlife Refuge, Kauai, Hawaii, United States of America, Pacific
Verreaux's Sifaka (Propithecus verreauxi) sitting on tree, Berenty Reserve, Southern Madagascar, Africa
Golden-crowned Sifaka (Propithecus tattersalli), an endangered species, Daraina, Northern Madagascar, Africa
Snow forms, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America
Golden-crowned Sifakas (Propithecus tattersalli), an endangered species, on tree, Daraina, Northern Madagascar, Africa
Bare tree reflected in the water of a floodplain, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America
Bare tree reflected in a floodplain, Bosque del Apache, National Wildlife Refuge, New Mexico, United States of America, North America
Snow goose (Chen caerulescens) flock at dawn after a blast off, Bosque Del Apache National Wildlife Refuge, New Mexico, United States of America, North America
American avocet (Recurvirostra americana) wading, Bear River Migratory Bird Refuge, Utah, United States of America
A rare adult melanistic king penguin (Aptenodytes patagonicus), returning from feeding at sea tin Fortuna 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
An Atlantic Puffin (Fratercula arctica), atop a cliff in Westman Islands, Iceland,, Polar Regions
Magdalena Island, Magallanes Region, Punta Arenas, Chile, South America
Brown pelicans (Pelecanus occidentalis) in flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge Florida, USA
Snowy Egret (Egretta thula) starting flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge Florida, USA
Snowy Egret (Egretta thula) perching on tree, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Great white egret (Ardea alba) starting flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge Florida, USA
Group of Snowy Egret (Egretta thula) fishing, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Snowy Egret (Egretta thula) in flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge Florida, USA
Great blue heron (Ardea herodias) looking for food, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Group of Great white egrets (Ardea alba) and Roseate Spoonbills (Platalea ajaja) fishing, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Yellow-crowned Night Heron (Nyctanassa violacea), Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Great white egrets (Ardea alba), Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Yellow-crowned Night Heron (Nyctanassa violacea), Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Yellow-crowned Night Heron (Nyctanassa violacea), Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Wood Storks (Mycteria Americana) in flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Wood Stork (Mycteria Americana) in flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Great white egret (Ardea alba) in flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge Florida, USA
Great white egret (Ardea alba) in flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Great white egrets (Ardea alba) looking for food in a pond, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Great white egrets (Ardea alba) looking for food in a pond, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Tricolored herons (Egretta tricolor) in flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge Florida, USA
Great white egrets (Ardea alba) looking for food in a pond, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Great white egrets (Ardea alba) and Tricolored heron (Egretta tricolor) looking for food, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Great white egrets (Ardea alba) looking for food, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Great white egrets (Ardea alba) looking for food, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Wood Stork (Mycteria Americana) and Roseate Spoonbills (Platalea ajaja) fishing, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Wood Stork (Mycteria Americana) and Roseate Spoonbills (Platalea ajaja) fishing, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Gadwall (Anas strepera) male standing on a frozen pond in the winter, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America
A young Grey Seal pup (Halichoerus grypus) on the shore in winter, at Donna Nook Nature Reserve, on the North Sea coast of Lincolnshire, Great Britain.
Juvenile double-crested cormorant (Phalacrocorax auritus) spreading its wings to dry, Sonny Bono Salton Sea National Wildlife Refuge, California, United States of America, North America
Black-necked stilt (Himantopus mexicanus) wading while feeding, Sonny Bono Salton Sea National Wildlife Refuge, California, United States of America, North America
Black-crowned night-heron (Nycticorax nycticorax), Bear River Migratory Bird Refuge, Utah, United States of America, North America
Grizzly bear (Ursus arctos horribilis) (Coastal brown bear), Kenai National Wildlife Refuge, Alaska, United States of America, North America
Chesapeake Bay saltmarsh and winding creeks of the Plumtree National Wildlife Refuge, Hampton, Virginia, United States of America, North America
Common Terns (Sterna hirundo), in their breeding colony in June, on Brownsea Island, a nature reserve in Poole Harbour, Dorset, England, United Kingdom, Europe
View of snow covered Aosta Valley from refuge cabin at Pavillon du Mont Frety in winter, Courmayeur, Aosta Valley, Italian Alps, Italy
Likouala River, Makoua, Republic of Congo
African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic
Adult brown bear (Ursus arctos) feeding on salmon at Iyoukeen Cove on Chichagof Island, 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
American coot (Fulica americana) walking on ice, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America
Red-tailed hawk (Buteo jamaicensis) juvenile in a snow-covered tree, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America
American kestrel (sparrow hawk) (Falco sparverius) female, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America
Red-tailed hawk (Buteo jamaicensis) taking off, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America
Mule deer (Odocoileus hemionus) buck, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America
American kestrel (sparrow hawk) (Falco sparverius) female, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America
American kestrel (sparrow hawk) (Falco sparverius) female, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America
Northern sea lions (Eumetopias jubatus) hauled out on South Marble Island in Glacier Bay National Park, UNESCO World Heritage Site, Alaska, United States of America, North America
Nazca booby (Sula grantii) downy chick 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
Gentoo penguin (Pygoscelis papua) breeding colony, outside refuge hut, at Petermann Island, Antarctica, Southern Ocean, Polar Regions
Magdalena Island, Magallanes Region, Punta Arenas, Chile, South America
Southern elephant seal (Mirounga leonina) pup, called weaners once their mothers stop nursing, South Georgia Island, Southern Ocean
Group of Great white egrets (Ardea alba) and Wood Stork (Mycteria Americana) perching on tree, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA
Juvenile red-tailed hawk (Buteo jamaicensis) in flight, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America
Kiitiwake, Farne Islands, Northumberland, England, United Kingdom, Europe
Adult sea otter (Enhydra lutris kenyoni) mother with her pup on her chest in Inian Pass, Southeastern Alaska, Pacific Ocean, United States of America, North America
Lava lizard (Microlophus spp) in the Galapagos Islands Archipelago, UNESCO World Heritage Site, Ecuador, South America
Adult brown pelican (Pelecanus occidentalis), in flight, Isla Carmen, Baja California Sur, Mexico, North America
Gentoo penguin (Pygoscelis papua) adult with chick on Cuverville Island, Antarctica, Southern Ocean, Polar Regions
Views of the Chilean Antarctic refuge hut Jorge Bonnen Rivera situated on Hut Point on the Antarctic Peninsula, Antarctica, Polar Regions
Atlantic Puffin (Fratercula arctica), on Skomer Island in July, a nature reserve off the coast of Pembrokeshire, Wales, United Kingdom, Europe
Cliffs at the Wick, on the south coast of Skomer Island, a nature reserve off the coast of Pembrokeshire, Wales, United Kingdom, Europe
Sandwich Terns (Sterna sandivicensis), in their breeding colony in June, on Brownsea Island, a nature reserve in Poole Harbour, Dorset, England, United Kingdom, Europe
Northern (Steller) sea lions, (Eumetopias jubatus), hauled out on South Marble Island, Glacier Bay National Park, Alaska, United States of America