1203 pictures found
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Sharp-tailed grouse (Tympanuchus phasianellus) displaying, Yukon–Charley Rivers National Preserve, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Sharp-tailed grouse (Tympanuchus phasianellus) displaying, Yukon–Charley Rivers National Preserve, Alaska, USA
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Sharp-tailed grouse (Tympanuchus phasianellus) displaying, Yukon–Charley Rivers National Preserve, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Sharp-tailed grouse (Tympanuchus phasianellus) displaying, Yukon–Charley Rivers National Preserve, Alaska, USA
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Sharp-tailed grouse (Tympanuchus phasianellus) displaying, Yukon–Charley Rivers National Preserve, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Sharp-tailed grouse (Tympanuchus phasianellus) displaying, Yukon–Charley Rivers National Preserve, Alaska, USA
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Sharp-tailed grouse (Tympanuchus phasianellus) displaying, Yukon–Charley Rivers National Preserve, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Sharp-tailed grouse (Tympanuchus phasianellus) displaying, Yukon–Charley Rivers National Preserve, Alaska, USA
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Copper mine buildings (1911-1938) at Kennecott, Wrangell-St.
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Copper mine buildings (1911-1938) at Kennecott, Wrangell-St. Elias National Park, Alaska, USA
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Copper mine buildings (1911-1938) at Kennecott, Wrangell-St. Elias National Park, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Copper mine buildings (1911-1938) at Kennecott, Wrangell-St. Elias National Park, Alaska, USA
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Chitina River in spring, Wrangell-St. Elias National Park, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Chitina River in spring, Wrangell-St. Elias National Park, Alaska, USA
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Protected bog forest trail in spring, Tetlin National Wildlife
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Protected bog forest trail in spring, Tetlin National Wildlife Refuge, Alaska, USA
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Common Raven (Corvus corax) on a branch in spring, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Common Raven (Corvus corax) on a branch in spring, Alaska, USA
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Eastern pasqueflower (Pulsatilla patens) flowers in spring, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Eastern pasqueflower (Pulsatilla patens) flowers in spring, Alaska, USA
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Reinder (Rangifer tarandus) crossing the Alaska highway near Tok in spring, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Reinder (Rangifer tarandus) crossing the Alaska highway near Tok in spring, Alaska, USA
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Permafrost thaw damage along the Taylor Highway in spring,
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Permafrost thaw damage along the Taylor Highway in spring, Alaska, USA
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Permafrost thaw damage along the Taylor Highway in spring,
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Permafrost thaw damage along the Taylor Highway in spring, Alaska, USA
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Permafrost thaw damage along the Taylor Highway in spring,
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Permafrost thaw damage along the Taylor Highway in spring, Alaska, USA
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Plains bison (Bison bison) in the snow in the spring, the record amount of snow brings them out of the forest to the road. Near Delta Junction,
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Plains bison (Bison bison) in the snow in the spring, the record amount of snow brings them out of the forest to the road. Near Delta Junction, Alaska, USA
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American Robin (Turdus migratorius) on a branch in spring, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
American Robin (Turdus migratorius) on a branch in spring, Alaska, USA
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American Robin (Turdus migratorius) on a branch in spring,
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
American Robin (Turdus migratorius) on a branch in spring, Alaska, USA
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Spruce Grouse (Falcipennis canadensis) in the undergrowth, Denali National Park, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Spruce Grouse (Falcipennis canadensis) in the undergrowth, Denali National Park, Alaska, USA
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Spruce Grouse (Falcipennis canadensis) eating on a branch, Denali National Park, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Spruce Grouse (Falcipennis canadensis) eating on a branch, Denali National Park, Alaska, USA
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Alaska Willow Ptarmigan (Lagopus lagopus alascensis) on a branch on snow in spring, Parc national Denali, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Alaska Willow Ptarmigan (Lagopus lagopus alascensis) on a branch on snow in spring, Parc national Denali, Alaska, USA
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Alaska Willow Ptarmigan (Lagopus lagopus alascensis) on snow in spring, Parc national Denali, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Alaska Willow Ptarmigan (Lagopus lagopus alascensis) on snow in spring, Parc national Denali, Alaska, USA
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Alaska Willow Ptarmigan (Lagopus lagopus alascensis) on snow in spring, Parc national Denali, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Alaska Willow Ptarmigan (Lagopus lagopus alascensis) on snow in spring, Parc national Denali, Alaska, USA
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Alaska Willow Ptarmigan (Lagopus lagopus alascensis) on snow in spring, Parc national Denali, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Alaska Willow Ptarmigan (Lagopus lagopus alascensis) on snow in spring, Parc national Denali, Alaska, USA
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Alaskan Moose (Alces alces gigas) in a river in spring, Denali National Park, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Alaskan Moose (Alces alces gigas) in a river in spring, Denali National Park, Alaska, USA
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Alaskan Moose (Alces alces gigas) in a river in spring, Denali
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Alaskan Moose (Alces alces gigas) in a river in spring, Denali National Park, Alaska, USA
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Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their migration to the calving grounds, Denali National Park, Alaska, USA
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Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their migration to the calving grounds, Denali National Park, Alaska, USA
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Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their migration to the calving grounds, Denali National Park, Alaska, USA
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Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their migration to the calving grounds, Denali National Park, Alaska, USA
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Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their migration to the calving grounds, Denali National Park, Alaska, USA
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Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their migration to the calving grounds, Denali National Park, Alaska, USA
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Reinder (Rangifer tarandus) crossing the road. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their migration to
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Reinder (Rangifer tarandus) crossing the road. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their migration to the calving grounds, Denali National Park, Alaska, USA
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Reinder (Rangifer tarandus) crossing the road. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their migration to
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Reinder (Rangifer tarandus) crossing the road. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their migration to the calving grounds, Denali National Park, Alaska, USA
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Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Reinder (Rangifer tarandus) walking on the tundra. After a very harsh winter the tundra is still very snowy and blocks the reindeer in their migration to the calving grounds, Denali National Park, Alaska, USA
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Alaskan Moose (Alces alces gigas) droppings in snow in spring, Denali National Park, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Alaskan Moose (Alces alces gigas) droppings in snow in spring, Denali National Park, Alaska, USA
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Alaskan Moose (Alces alces gigas) on the road in spring, Denali National Park, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Alaskan Moose (Alces alces gigas) on the road in spring, Denali National Park, Alaska, USA
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Alaskan Moose (Alces alces gigas) walking in snow in spring, Denali National Park, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Alaskan Moose (Alces alces gigas) walking in snow in spring, Denali National Park, Alaska, USA
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Alaskan Moose (Alces alces gigas) in spring, Denali National
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Alaskan Moose (Alces alces gigas) in spring, Denali National Park, Alaska, USA
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Alaskan Moose (Alces alces gigas) in spring, Denali National Park, Alaska, USA
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Alaskan Moose (Alces alces gigas) in spring, Denali National Park, Alaska, USA
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Alaskan Moose (Alces alces gigas) in spring, Denali National
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Alaskan Moose (Alces alces gigas) in spring, Denali National Park, Alaska, USA
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Hoary marmot (Marmota caligata) sitting in the ice blocks on the side of the road in spring as there is still about one meter of snow on the tundra
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Hoary marmot (Marmota caligata) sitting in the ice blocks on the side of the road in spring as there is still about one meter of snow on the tundra after a winter of record snow cover, Denali highway, Alaska, USA
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Hoary marmot (Marmota caligata) sitting in the ice blocks on the side of the road in spring as there is still about one meter of snow on the tundra
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Hoary marmot (Marmota caligata) sitting in the ice blocks on the side of the road in spring as there is still about one meter of snow on the tundra after a winter of record snow cover, Denali highway, Alaska, USA
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Landscape of the Alaska Range looking north Mac Laren river in the spring, after a winter of record snowfall (about 8-9 metres of snow in total).
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Landscape of the Alaska Range looking north Mac Laren river in the spring, after a winter of record snowfall (about 8-9 metres of snow in total). Denali highway, Alaska, USA
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Landscape of the Alaska Range looking north in the spring, after a winter of record snowfall (about 8-9 metres of snow in total). Denali highway,
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Landscape of the Alaska Range looking north in the spring, after a winter of record snowfall (about 8-9 metres of snow in total). Denali highway, Alaska, USA
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Full moonrise behind Mount Ponset (2828 m) in autumn, Mercantour National Park, France
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Full moonrise behind Mount Ponset (2828 m) in autumn, Mercantour National Park, France
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Haute Tinée in autumn, the Lauzarouotte pond (2123 m) and the Bonette peak (2860 m) Mercantour National Park, Alps, France
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Haute Tinée in autumn, the Lauzarouotte pond (2123 m) and the Bonette peak (2860 m) Mercantour National Park, Alps, France
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Haute Tinée in autumn, the hamlet of Bouseyas and the border ridges, Mercantour National Park, Alps, France
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Haute Tinée in autumn, the hamlet of Bouseyas and the border ridges, Mercantour National Park, Alps, France
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Haute Tinée in autumn, Mercantour National Park, Alps, France
© Robert Valarcher / Biosphoto
© Robert Valarcher / Biosphoto
Haute Tinée in autumn, Mercantour National Park, Alps, France