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Kenya, Narok County, Masai Mara National Reserve. Long columns of Wildebeest cross the grassy plains of Masai Mara during the annual migration of these antelopes.
Con derechos protegidos
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Kenya, Masai Mara, Narok County. White-bearded Gnus, or wildebeest, cross the Mara River during their annual migration.
Con derechos protegidos
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Kenya, Narok County, Masai Mara National Reserve. A large herd of Wildebeest crosses the grassy plains of Masai Mara during the annual migration of these antelopes.
Con derechos protegidos
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Kenya, Masai Mara, Narok County. Large columns of Wildebeest wind across the grassy plains of Masai Mara National Reserve during their annual migration.
Con derechos protegidos
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Kenya, Narok County, Masai Mara National Reserve. Thousands of Wildebeest converge on the grassy plains of Masai Mara during the annual migration of these antelopes.
Con derechos protegidos
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Kenya, Narok County, Masai Mara National Reserve. Long columns of Wildebeest cross the grassy plains of Masai Mara during the annual migration of these antelopes.
Con derechos protegidos
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A flock of migrating sanderlings (Calidris alba) taking flight on Sand Dollar Beach, Baja California Sur, Mexico, North America
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Kenya, Narok County, Masai Mara National Reserve. Zebras swim across the Mara River as Nile crocodiles lie in wait to grab the weakest.
Con derechos protegidos
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Kenya, Narok County, Masai Mara National Reserve. Zebras swim across the Mara River watched by a large hippo.
Con derechos protegidos
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Underwater low angle view of school of spotted eagle rays (Aetobatus narinari), Cancun, Mexico
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Africa, Kenya, Masai Mara, Narok County. Hot air balloons floating over the Wildebeest migration.
Con derechos protegidos
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Kenya, Narok County, Masai Mara National Reserve. The late afternoon sun catches the beards of White-bearded Gnus crossing the verdant plains in Masai Mara.
Con derechos protegidos
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Kenya, Narok County, Masai Mara National Reserve. Long columns of Wildebeest cross the grassy plains of Masai Mara during the annual migration of these antelopes.
Con derechos protegidos
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Wildebeest massing to cross the Mara River during their annual migration from the Serengeti National Park in Northern Tanzania to the Masai Mara National Reserve.
Con derechos protegidos
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View of three Sandhill Cranes in flight over Creamer's Field, Fairbanks, Interior Alaska
Con derechos protegidos
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Underwater view of mobula rays gathering for migration around the Yucatan Peninsula, Contoy Island, Quintana Roo, Mexico
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Trumpeter swans in flight during Spring migration, Marsh Lake, Yukon Territory, Canada
Con derechos protegidos
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Wildebeest crossing the Mara River during their annual migration from the Serengeti National Park in Northern Tanzania to the Masai Mara National Reserve.
Con derechos protegidos
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Wildebeest crossing the Mara River during their annual migration from the Serengeti National Park in Northern Tanzania to the Masai Mara National Reserve.
Con derechos protegidos
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Alaska, USA. Salmon running in the shallows near Valdez, Prince William Sound, during August.
Con derechos protegidos
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View of the Porcupine Caribou herd climbing a steep bank after swimming across the Hulahula River during their annual migration in ANWR, Arctic Alaska, Summer
Con derechos protegidos
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Wildebeest stampede on the dry grassy plains on the west side of the Ngorongoro Highlands. .
Con derechos protegidos
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USA,Alaska,Copper River Delta. Western Sandpipers (Calidris mauri) and Dunlin (Calidris alpina),in spring migration,stop to feed on the tidal flats of the Copper River Delta. Virtually the entire population of Western Sandpipers passes through the region during the springtime.
Con derechos protegidos
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USA,Alaska. Arctic tern in the Alaska Range. Arctic terns have the longest migration of all birds,travelling up to 40,000 KM/year (25,000 miles).
Con derechos protegidos
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Geese Flying in V-Formation, Migrating South for Winter, Oregon, USA
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During the annual migration of up to 1.5 million wildebeest from Serengeti,Tanzania,to the Mara and back each year,the animals ford or swim across the Mara River on several occasions. At times,their crossing places are badly chosen and many drown.
Con derechos protegidos
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Porcupine Caribou herd crossing Turner River Arctic National Wildlife Refuge Arctic AK Summer
Con derechos protegidos
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USA,Alaska. Arctic tern in the Alaska Range. Arctic terns have the longest migration of all birds,travelling up to 40,000 KM/year (25,000 miles).
Con derechos protegidos
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During the annual migration of up to 1.5 million wildebeest from Serengeti,Tanzania,to the Mara and back each year,the animals ford or swim across the Mara River on several occasions.
Con derechos protegidos
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An aerial photograph of wildebeest during their migration in Masai Mara. Up to 1.5 million wildebeest join the migration from Serengeti,Tanzania,to the Mara and back each year.
Con derechos protegidos
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An aerial photograph of the wildebeest migration in Masai Mara. Up to 1.5 million wildebeest join the migration from Serengeti,Tanzania,to the Mara and back each year.
Con derechos protegidos
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During the annual migration of up to 1.5 million wildebeest from Serengeti,Tanzania,to the Mara and back each year,the animals ford or swim across the Mara River on several occasions.
Con derechos protegidos
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COMPOSITE: Trumpeter Swans in flight at sunset over the Tongass National Forest, Inside Passage, Southeast Alaska, Spring
Con derechos protegidos
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Kenya,Narok district,Masai Mara. A herd of wildebeest rushes down a steep bank to cross the Mara River in Masai Mara National Reserve.
Con derechos protegidos
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Nomadic transhumance with bactrian camels in snow covered winter landscape, Province of Khovd, Mongolia, Central Asia, Asia
Con derechos protegidos
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Staging flock of mostly Western Sandpipers lining edges of tidal creek during Spring migration on the Copper River Delta,Southcentral Alaska
Con derechos protegidos
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Large herds of white-bearded wildebeest,the vanguard of the annual migration,on the plains of the western Serengeti
Con derechos protegidos
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Western Arctic Caribou herd migrating north near Cape Lisburne Brooks Range Alaska Spring
Con derechos protegidos
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View of the Porcupine Caribou herd crossing the Hulahula River near Old Man Creek during their annual migration through ANWR, Arctic Alaska, Summer
Con derechos protegidos
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Underwater view of mobula rays gathering for migration around the Yucatan Peninsula, Contoy Island, Quintana Roo, Mexico
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Caribou herd swimming across Kobuk River Arctic Alaska Autumn Kobuk Valley National Park
Con derechos protegidos
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Wildebeest crossing Mara River during annual migration, Masai Mara, Kenya, East Africa, Africa
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Wildebeest crossing Mara River during annual migration, Masai Mara, Kenya, East Africa, Africa
Con derechos protegidos
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During the annual migration of up to 1.5 million wildebeest from Serengeti,Tanzania,to the Mara and back each year,the animals ford or swim across the Mara River on several occasions.
Con derechos protegidos
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During the annual migration of up to 1.5 million wildebeest from Serengeti,Tanzania,to the Mara and back each year,the animals ford or swim across the Mara River on several occasions.
Con derechos protegidos
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USA,Alaska Copper River Delta. Western Sandpipers (Calidris mauri) and Dunlin (Calidris alpina),in spring migration,stop to feed on the tidal flats of the Copper River Delta. Virtually the entire population of Western Sandpipers passes through the region during the springtime.
Con derechos protegidos
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Safari vehicles lined up at a Mara River crossing to witness the Great Migration, Masai Mara, Kenya. Several drowned wildebeest can be seen in the forground victims from earlier crossings.
Con derechos protegidos
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Kenya, Masai Mara, Narok County. A female cheetah with her 6 three month old male cub resting on a termite mound at dawn.
Con derechos protegidos
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An aerial photograph of the wildebeest migration in Masai Mara. Up to 1.5 million wildebeest join the migration from Serengeti,Tanzania,to the Mara and back each year.
Con derechos protegidos
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USA,Alaska. Arctic tern in the Alaska Range. Arctic terns have the longest migration of all birds,travelling up to 40,000 KM/year (25,000 miles).
Con derechos protegidos
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A large herd of buffalos cross a tributary of the Okavango River in the Okavango Delta of northwest Botswana.
Con derechos protegidos
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Geese Flying in V-Formation, Migrating South for Winter, Oregon, USA
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Western Sandpipers bathing in Hartney Bay during Spring migration, Copper River Delta,Southcentral Alaska
Con derechos protegidos
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Monarch Butterflies, Sierra Chincua Butterfly Sanctuary, Angangueo, Michoacan, Mexico
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Caribou Crossing Kobuk River Western AK Summer Western Arctic Herd
Con derechos protegidos
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Wildebeest crossing Mara River during annual migration, Masai Mara, Kenya, East Africa, Africa
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A large herd of Wildebeest and Burchell’s zebra come down to drink water at Sand River,close to the border of the Serengeti National Park and Masai Mara Game Reserve.
Con derechos protegidos
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Kenya,Narok district,Masai Mara. A herd of wildebeest rushes down a steep bank to cross the Mara River in Masai Mara National Reserve.
Con derechos protegidos
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A large herd of Wildebeest and Burchell’s zebra come down to drink water at Sand River,close to the border of the Serengeti National Park and Masai Mara Game Reserve,Kenya
Con derechos protegidos
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USA,Alaska,Copper River Delta. Western Sandpipers (Calidris mauri) and Dunlin (Calidris alpina),in spring migration,stop to feed on the tidal flats of the Copper River Delta. Virtually the entire population of Western Sandpipers passes through the region during the springtime.
Con derechos protegidos
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Caribou bulls swimming across Kobuk River Arctic Alaska Autumn Kobuk Valley National Park
Con derechos protegidos
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USA,Alaska,Copper River Delta. Western Sandpipers (Calidris mauri) and Dunlin (Calidris alpina),in spring migration,stop to feed on the tidal flats of the Copper River Delta. Virtually the entire population of Western Sandpipers passes through the region during the springtime.
Con derechos protegidos
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Kenya. Vultures and a marabou stork roost in trees near a herd of wildebeest in Masai Mara National Reserve.
Con derechos protegidos
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USA,Alaska,Copper River Delta. Western Sandpipers (Calidris mauri) and Dunlin (Calidris alpina),in spring migration,stop to feed on the tidal flats of the Copper River Delta. Virtually the entire population of Western Sandpipers passes through the region during the springtime.
Con derechos protegidos
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Kenya,Masai Mara,Narok District. Long columns of wildebeest zigzag through open grassy plains during the annual Wildebeest migration from the Serengeti National Park in Northern Tanzania to the Masai Mara National Reserve in Southern Kenya.
Con derechos protegidos
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Nomadic transhumance with bactrian camels in winter landscape, Province of Khovd, Mongolia, Central Asia, Asia
Con derechos protegidos
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Kenya, Masai Mara, Narok County. White-bearded Gnus, or wildebeest, mass on the banks of the Mara River in readiness to cross during their annual migration.
Con derechos protegidos
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Young Male Grizzly Bear Searching for Pacific Salmon, Glendale River, Knight Inlet, British Columbia, Canada
Con derechos protegidos
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A large herd of Wildebeest and Burchell’s zebra come down to drink water at Sand River,close to the border of the Serengeti National Park and Masai Mara Game Reserve.
Con derechos protegidos
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Whimbrel roosting with Western Sandpipers in Odiak Slough during Spring migration, Copper River Delta,Southcentral Alaska
Con derechos protegidos
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USA,Alaska Copper River Delta. Western Sandpipers (Calidris mauri) and Dunlin (Calidris alpina),in spring migration,stop to feed on the tidal flats of the Copper River Delta. Virtually the entire population of Western Sandpipers passes through the region during the springtime.
Con derechos protegidos
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USA,Alaska. Arctic tern in the Alaska Range. Arctic terns have the longest migration of all birds,travelling up to 40,000 KM/year (25,000 miles).
Con derechos protegidos
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Gaggle of Canada Geese congregate in a field in Palmer with Chugach Mountains in the background, Matanuska-Susitna Valley, Southcentral Alaska, Spring
Con derechos protegidos
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Close-up of a humpback whale in the clear, calm waters, Hervey Bay, Queensland, Australia, showing its fluke, dorsal fin and white flippers, as well as bubbles rising from another whale
Con derechos protegidos
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Wildebeest swimming across the Mara River during their annual migration from the Serengeti National Park in Northern Tanzania to the Masai Mara National Reserve.
Con derechos protegidos
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Kenya,Maasai Mara,Narok district. As wildebeest swim across the Mara River during their annual migration from the Serengeti National Park in Northern Tanzania to the Masai Mara National Reserve in Southern Kenya,a large crocodile comes to attack one of them.
Con derechos protegidos
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Snow goose (Chen caerulescens) flock in flight, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America
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Close-up of the tail, or flukes, of a humpback whale diving in calm, clear, sunlit waters of Hervey Bay, Queensland, Australia
Con derechos protegidos
