Andy Rouse / Dahl's Aquatic frog (Litoria dahli) in water, Bamarru Plains, North West Territories, Australia
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Andy Rouse / Dingo (Canis lupus dingo) Kakadu National Park, North West Territories, Australia
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Eric Baccega / Herd of Muskox with calf (Ovibos moschatus) standing in the snow, Banks Island, North West Territories, Canada, August
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Eric Baccega / Three Muskox (Ovibos moschatus) running through snow, Banks Island, North West Territories, Canada
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Staffan Widstrand / High arctic landscape in spring, -40 degrees C, Bylot Is, Baffin Is, North West Territories, Canada, 1995
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Staffan Widstrand / Tracks of Polar bear in snow {Ursus maritimus} Baffin Island, Nunavut, North West Territories, Canada
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Martha Holmes / Female polar bear with cub on ice floe (Ursus maritimus) North West Territories, Canada
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Staffan Widstrand / Bylot island, Baffin islands, melting sea ice in spring, Canad
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Martha Holmes / Polar bear swimming near ice floe. Canada, North West Territories
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Andy Rouse / Dahl's Aquatic frog (Litoria dahli) in water, Bamarru Plains, North West Territories, Australia
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Andy Rouse / Australian Water Lilly (Nymphaea violacea) reflected in water, Bamarru, North West Territories, Australia
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Andy Rouse / Sunrise over wetlands of Bamarru Plains, North West Territories, Australia, May 2009
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Andy Rouse / Sunrise over wetlands of Bamarru Plains, North West Territories, Australia, May 2009
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Andy Rouse / Tourist air boat safari in Bamarru Plains, North West Territories, Australia, April 2007
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Andy Rouse / Aboriginal cave art being explained by guide Arnhemland, North West Territories, Australia, May 2009
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Andy Rouse / Aboriginal cave art being explained by guide Arnhemland, North West Territories, Australia, May 2009
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Andy Rouse / Aboriginal cave art, Arnhemland, North West Territories, Australia, May 2009
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Andy Rouse / Magpie geese (Anseranas semipalmata) pair in flight Bamarru Plains, North West Territories, Australia
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Andy Rouse / Cross section of Lily seed head, Bamarru Plains, North West Territories, Australia
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Andy Rouse / Tourist air boat safari in Bamarru Plains, North West Territories, Australia, May 2009
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Andy Rouse / Magpie goose (Anseranas semipalmata) sitting on tree with full moon behind, Bamarru Plains, North West Territories, Australia
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Andy Rouse / Magpie goose (Anseranas semipalmata) sitting on tree with full moon behind, Bamarru Plains, North West Territories, Australia
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Andy Rouse / Wetland habitat of Bamarru Plains, North West Territories, Australia
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Andy Rouse / Magpie goose (Anseranas semipalmata) on tree at sunrise, Bamarru Plains, North West Territories, Australia
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Andy Rouse / Magpie goose (Anseranas semipalmata) on tree at sunrise, Bamarru Plains, North West Territories, Australia
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Andy Rouse / Wetland habitat of Bamarru Plains, North West Territories, Australia, April 2007
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Andy Rouse / Wetland habitat of Bamarru Plains, North West Territories, Australia, April 2007
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Andy Rouse / Wetland habitat with water lilies, Bamarru Plains, North West Territories, Australia, April 2007
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Andy Rouse / Magpie geese (Anseranas semipalmata) on tree at sunrise, Bamarru Plains, North West Territories, Australia, May 2009
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Andy Rouse / Magpie geese (Anseranas semipalmata) on tree at sunrise, Bamarru Plains, North West Territories, Australia, May 2009
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Andy Rouse / Magpie geese (Anseranas semipalmata) on tree at sunrise, Bamarru Plains, North West Territories, Australia, May 2009
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Andy Rouse / Magpie goose (Anseranas semipalmata) nest on wetland, Bamarru Plains, North West Territories, Australia, May 2009
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Andy Rouse / Green or Garden praying mantis (Orthodera ministralis) Bamarru Plains, North West Territories, Australia
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Andy Rouse / Wetland habitat, Bamarru Plains, North West Territories, Australia, April 2007
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Andy Rouse / Magpie goose (Anseranas semipalmata) on tree at sunrise, Bamarru Plains, North West Territories, Australia
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Andy Rouse / Magpie geese (Anseranas semipalmata) group in flight, Bamarru Plains, North West Territories, Australia
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Eric Baccega / Aerial view of Mackenzie river and delta in winter, North West Territories, Canada, August 2010
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Bryan and Cherry Alexander / View of Anderson River as it runs through tundra east of Inuvik. North West Territories, Canada, 1996.
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Eric Baccega / Aerial view of Mackenzie delta in winter, North West Territories, Canada April 2010
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Eric Baccega / Aerial view of Mackenzie river and delta in winter, North West Territories, Canada April 2010
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Eric Baccega / Portrait of a young inuit girl, Banks Island, North West Territories, Canada April 2010
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Eric Baccega / Collection of antler hunting trophies from Reindeer (Rangifer tarandus pearyi) Banks Island, North West Territories, Canada April 2010
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Eric Baccega / Polar bear (Ursus maritimus) and Muskox (Ovibos moschatus) skins, Banks Island, North West Territories, Canada, April 2010
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Eric Baccega / Arctic fox (Vulpes lagopus) in white phase, sitting on a snow slope, Banks Island, North West Territories, Canada
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Eric Baccega / Herd of Muskox (Ovibos moschtus) running across thie snow, Banks Island, North West Territories, Canada
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Eric Baccega / Three Muskox (Ovibos moschatus) running through snow, Banks Island, North West Territories, Canada
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Eric Baccega / Two Muskox (Ovibos moschtus) running through snow, Banks Island, North West Territories, Canada
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Eric Baccega / Small herd of muskox (Ovibos moschatus) Banks Island, North West Territories, Canada
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Eric Baccega / Herd of Muskox (Ovibos moschatus) Banks Island, North West Territories, Canada
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Eric Baccega / Herd of Muskox (Ovibos moschatus) Banks Island, North West Territories, Canada
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Eric Baccega / Three Muskox in snow (Ovibos moschatus) Banks Island, North West Territories, Canada
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Eric Baccega / Muskox in snow (Ovibos moschatus) Banks Island, North West Territories, Canada
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Eric Baccega / Aerial view of herd of Muskox (Ovibos moschtus) Banks Island, North West Territories, Canada
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Eric Baccega / Herd of Muskox (Ovibos moschatus) Banks Island, North West Territories, Canada
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Eric Baccega / Footprint of Arctic wolf (Canis lupus arctos) Banks Island, North West Territories, Canada
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Eric Baccega / Muskox (Ovibos moschatus) standing in profile, in snow, Banks Island, North West Territories, Canada
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Eric Baccega / Aerial view of Mackenzie delta in winter, North West Territories, Canada April 2010
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Patricio Robles Gil / Male Dall sheep (Ovis dalli) herd walking in line, South Nahanni Backbone Range, Mackenzie Mountains, North West Territories, Canada
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Eric Baccega / Wood Bison (Bison bison athabascae) walking, Mackenzie River, North West Territories, Canada
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Eric Baccega / Three Wood Bison (Bison bison athabascae) by water, Mackenzie River, North West territories, Canada
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Eric Baccega / Wood Bison (Bison bison athabascae) walking, Mackenzie River, North West territories, Canada
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Eric Baccega / Wood Bison (Bison bison athabascae) portrait, Mackenzie River, North West territories, Canada
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Eric Baccega / Wood Bison (Bison bison athabascae) walking through high grassland vegetation, Mackenzie River, North West territories, Canada
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Staffan Widstrand / Bylot island, Baffin islands, melting sea ice in spring Canada Spring
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Martha Holmes / Polar bear swimming, North West Territories, Canada
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Martha Holmes / Polar bear swimming in the sea, Canadian North West Territories
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Martha Holmes / Female polar bear and cub swimming, North West Territories, Canada
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Martha Holmes / Polar bear shaking water out of fur after swimming, North West Territories, Canada
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Martha Holmes / Polar bear swimming. Canada, North West Territories
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Eric Baccega / Herd of Muskox with calf (Ovibos moschatus) Banks Island, North West Territories, Canada
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Eric Baccega / Herd of Muskox with calf (Ovibos moschatus) Banks Island, North West Territories, Canada
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Eric Baccega / Aerial view of winter hiker pulling his red pulka on Banks island, North West Territories, Canada, April 2010
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Eric Baccega / Winter hiker pulling his pulka on Banks island, North West Territories, Canada, April 2010
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Eric Baccega / Arctic landscape on Banks island, North West Territories, Canada, April 2010
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Staffan Widstrand / Two male Black grouse (Lyrurus tetrix) fighting and sparing over territory at a snow covered lek, Vasterbotten, Sweden. April.
