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Polar bear (Ursus maritimus) juvenile spreading body weight over thin newly forming pack ice, trying not to break through, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North...  -  Steven Kazlowski,Steven Kazlowski
01431445
Steven Kazlowski,Steven Kazlowski / Polar bear (Ursus maritimus) juvenile spreading body weight over thin newly forming pack ice, trying not to break through, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North...
Polar bear (Ursus maritimus) juvenile rolling  around on newly formed pack ice, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska  -  Steven Kazlowski,Steven Kazlowski
01431390
Steven Kazlowski,Steven Kazlowski / Polar bear (Ursus maritimus) juvenile rolling around on newly formed pack ice, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska
Polar bear (Ursus maritimus) portrait, female. Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska.  -  Steven Kazlowski,Steven Kazlowski
01431378
Steven Kazlowski,Steven Kazlowski / Polar bear (Ursus maritimus) portrait, female. Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska.
Polar bear (Ursus maritimus) curious adult head underwater, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska.  -  Steven Kazlowski,Steven Kazlowski
01431377
Steven Kazlowski,Steven Kazlowski / Polar bear (Ursus maritimus) curious adult head underwater, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska.
Polar bear (Ursus maritimus) young bear in freezing water during autumn freeze up, Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, Beaufort Sea  -  Steven Kazlowski,Steven Kazlowski
01431376
Steven Kazlowski,Steven Kazlowski / Polar bear (Ursus maritimus) young bear in freezing water during autumn freeze up, Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, Beaufort Sea
Polar bear (Ursus maritimus) 4-5 year-old on pack ice, low angle shot, off the 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, Beaufort Sea, autumn  -  Steven Kazlowski,Steven Kazlowski
01431359
Steven Kazlowski,Steven Kazlowski / Polar bear (Ursus maritimus) 4-5 year-old on pack ice, low angle shot, off the 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, Beaufort Sea, autumn
Polar bear (Ursus maritimus) adult walking over newly formed pack ice during fall freeze up, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407526
Steven Kazlowski / Polar bear (Ursus maritimus) adult walking over newly formed pack ice during fall freeze up, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Polar bear (Ursus maritimus) sow and cub sliding on their backs over the pack ice, much like ice skating, 1002 coastal plain of the Arctic National Wildlife Refuge, Alaska, USA  -  Steven Kazlowski
01407521
Steven Kazlowski / Polar bear (Ursus maritimus) sow and cub sliding on their backs over the pack ice, much like ice skating, 1002 coastal plain of the Arctic National Wildlife Refuge, Alaska, USA
Grizzly bear (Ursus arctos horribils) walking on snow, 1002 coastal plain, Arctic National Wildlife Refuge, North Slope of Brooks Range, Alaska, USA  -  Steven Kazlowski
01407481
Steven Kazlowski / Grizzly bear (Ursus arctos horribils) walking on snow, 1002 coastal plain, Arctic National Wildlife Refuge, North Slope of Brooks Range, Alaska, USA
Polar bear (Ursus maritimus) curious cub sits up on its hind legs,  paw raised,  and tries to balance itself, along Bernard Spit in autumn, 1002 area of the Arctic National Wildlife Refuge, Alaska, US...  -  Steven Kazlowski
01363458
Steven Kazlowski / Polar bear (Ursus maritimus) curious cub sits up on its hind legs, paw raised, and tries to balance itself, along Bernard Spit in autumn, 1002 area of the Arctic National Wildlife Refuge, Alaska, US...
Polar bear (Ursus maritimus) curious cub sits up on its hind legs and tries to balance itself, along Bernard Spit in autumn, 1002 area of the Arctic National Wildlife Refuge, Alaska, USA, October  -  Steven Kazlowski
01363457
Steven Kazlowski / Polar bear (Ursus maritimus) curious cub sits up on its hind legs and tries to balance itself, along Bernard Spit in autumn, 1002 area of the Arctic National Wildlife Refuge, Alaska, USA, October
Polar bear (Ursus maritimus) curious cub stands along Bernard Spit as its mother and other cub rest in the background, 1002 area of the Arctic National Wildlife Refuge, Alaska, USA, October  -  Steven Kazlowski
01363448
Steven Kazlowski / Polar bear (Ursus maritimus) curious cub stands along Bernard Spit as its mother and other cub rest in the background, 1002 area of the Arctic National Wildlife Refuge, Alaska, USA, October
Caribou (Rangifer tarandus) calf running on the tundra, Arctic National Wildlife Refuge, Alaska  -  Matthias Breiter
00600026
Matthias Breiter / Caribou (Rangifer tarandus) calf running on the tundra, Arctic National Wildlife Refuge, Alaska
Caribou (Rangifer tarandus) pair crossing a river during summer migration, Arctic National Wildlife Refuge, Alaska  -  Ingo Arndt
00438287
Ingo Arndt / Caribou (Rangifer tarandus) pair crossing a river during summer migration, Arctic National Wildlife Refuge, Alaska
Caribou (Rangifer tarandus) herd crossing a Kongakut River during summer migration, Arctic National Wildlife Refuge, Alaska  -  Ingo Arndt
00438286
Ingo Arndt / Caribou (Rangifer tarandus) herd crossing a Kongakut River during summer migration, Arctic National Wildlife Refuge, Alaska
Caribou (Rangifer tarandus) mother and calf crossing a river during summer migration, Arctic National Wildlife Refuge, Alaska  -  Ingo Arndt
00438283
Ingo Arndt / Caribou (Rangifer tarandus) mother and calf crossing a river during summer migration, Arctic National Wildlife Refuge, Alaska
Caribou (Rangifer tarandus) bull crossing a river during summer migration, Arctic National Wildlife Refuge, Alaska  -  Ingo Arndt
00438282
Ingo Arndt / Caribou (Rangifer tarandus) bull crossing a river during summer migration, Arctic National Wildlife Refuge, Alaska
Caribou (Rangifer tarandus) herd migrating across tundra, Arctic National Wildlife Refuge, Alaska  -  Michio Hoshino
00111250
Michio Hoshino / Caribou (Rangifer tarandus) herd migrating across tundra, Arctic National Wildlife Refuge, Alaska
Caribou (Rangifer tarandus) herd, Arctic National Wildlife Refuge, Alaska  -  Michio Hoshino
00093658
Michio Hoshino / Caribou (Rangifer tarandus) herd, Arctic National Wildlife Refuge, Alaska
Caribou (Rangifer tarandus) stampeding herd crossing river, Arctic National Wildlife Refuge, Alaska  -  Michio Hoshino
00085028
Michio Hoshino / Caribou (Rangifer tarandus) stampeding herd crossing river, Arctic National Wildlife Refuge, Alaska
Caribou (Rangifer tarandus) of the Porcupine Herd climb Brooks Range foothills at midnight during migration, Alaska  -  Michio Hoshino
00081637
Michio Hoshino / Caribou (Rangifer tarandus) of the Porcupine Herd climb Brooks Range foothills at midnight during migration, Alaska
Caribou (Rangifer tarandus) herd stampeding, Arctic National Wildlife Refuge, Alaska  -  Michio Hoshino
00076936
Michio Hoshino / Caribou (Rangifer tarandus) herd stampeding, Arctic National Wildlife Refuge, Alaska
Caribou (Rangifer tarandus) herd migrating in summer, Arctic National Wildlife Refuge, Alaska  -  Michio Hoshino
00066956
Michio Hoshino / Caribou (Rangifer tarandus) herd migrating in summer, Arctic National Wildlife Refuge, Alaska
Caribou (Rangifer tarandus) herd migrating across tundra, Arctic National Wildlife Refuge, Alaska  -  Michio Hoshino
00066726
Michio Hoshino / Caribou (Rangifer tarandus) herd migrating across tundra, Arctic National Wildlife Refuge, Alaska
Polar bear (Ursus maritimus) pair of adult sows play with one another on the pack ice during fall freeze up, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407539
Steven Kazlowski / Polar bear (Ursus maritimus) pair of adult sows play with one another on the pack ice during fall freeze up, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Polar bear (Ursus maritimus) curious spring cub checks out a local elder in snow vehicle outside the arctic village of Kaktovik, Barter Island, 1002 area of the Arctic National Wildlife Refuge, North...  -  Steven Kazlowski
01407538
Steven Kazlowski / Polar bear (Ursus maritimus) curious spring cub checks out a local elder in snow vehicle outside the arctic village of Kaktovik, Barter Island, 1002 area of the Arctic National Wildlife Refuge, North...
Polar bear (Ursus maritimus) adult stands on the snow-covered pack ice to get a better look at something in the distance, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407537
Steven Kazlowski / Polar bear (Ursus maritimus) adult stands on the snow-covered pack ice to get a better look at something in the distance, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Polar bear (Ursus maritimus) walks through slushy newly forming pack ice at sunrise, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407536
Steven Kazlowski / Polar bear (Ursus maritimus) walks through slushy newly forming pack ice at sunrise, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Polar bear (Ursus maritimus) pair of adults rest and stay cool on the newly formed pack ice in autumn, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407535
Steven Kazlowski / Polar bear (Ursus maritimus) pair of adults rest and stay cool on the newly formed pack ice in autumn, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Polar bear (Ursus maritimus) sows with cubs hang out on newly formed pack ice during fall freeze up, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407534
Steven Kazlowski / Polar bear (Ursus maritimus) sows with cubs hang out on newly formed pack ice during fall freeze up, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Polar bear (Ursus maritimus) pair of spring cubs play tug-o-war with a piece of whale remains during freeze up, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407533
Steven Kazlowski / Polar bear (Ursus maritimus) pair of spring cubs play tug-o-war with a piece of whale remains during freeze up, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Polar bear (Ursus maritimus) sow on newly formed pack ice with spring cub playing in the water, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407528
Steven Kazlowski / Polar bear (Ursus maritimus) sow on newly formed pack ice with spring cub playing in the water, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Polar bear (Ursus maritimus) adult resting and staying cool on the newly formed pack ice in autumn, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407527
Steven Kazlowski / Polar bear (Ursus maritimus) adult resting and staying cool on the newly formed pack ice in autumn, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Polar bear (Ursus maritimus) sow on newly formed pack ice with spring cub playing in the water, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407524
Steven Kazlowski / Polar bear (Ursus maritimus) sow on newly formed pack ice with spring cub playing in the water, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Polar bear (Ursus maritimus) female practises breaking a hole in the pack ice, in the 1002 coastal plain of the Arctic National Wildlife Refuge, Alaska, USA  -  Steven Kazlowski
01407523
Steven Kazlowski / Polar bear (Ursus maritimus) female practises breaking a hole in the pack ice, in the 1002 coastal plain of the Arctic National Wildlife Refuge, Alaska, USA
Polar bear (Ursus maritimus) female practises breaking a hole in the pack ice, in the 1002 coastal plain of the Arctic National Wildlife Refuge, Alaska, USA  -  Steven Kazlowski
01407522
Steven Kazlowski / Polar bear (Ursus maritimus) female practises breaking a hole in the pack ice, in the 1002 coastal plain of the Arctic National Wildlife Refuge, Alaska, USA
White fronted goose (Anser albifrons) adult walking over a frozen freshwater pond, 1002 coastal plain of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407515
Steven Kazlowski / White fronted goose (Anser albifrons) adult walking over a frozen freshwater pond, 1002 coastal plain of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Muskox (Ovibos moschantus) profile of a bull on the central arctic coastal plain, North Slope of the Brooks Range, Alaska, USA  -  Steven Kazlowski
01407512
Steven Kazlowski / Muskox (Ovibos moschantus) profile of a bull on the central arctic coastal plain, North Slope of the Brooks Range, Alaska, USA
Polar bears (Ursus maritimus) scavenging on baleen whale bones at night in the 1002 coastal plain of the Arctic National Wildlife Refuge, Alaska, USA  -  Steven Kazlowski
01407505
Steven Kazlowski / Polar bears (Ursus maritimus) scavenging on baleen whale bones at night in the 1002 coastal plain of the Arctic National Wildlife Refuge, Alaska, USA
Reindeer (Rangifer tarandus) adult carcass frozen in the snow at -40 below zero, 1002 coastal plain of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407498
Steven Kazlowski / Reindeer (Rangifer tarandus) adult carcass frozen in the snow at -40 below zero, 1002 coastal plain of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Arctic char (Salvelinus alpinus) catch held by silhouetted woman at sunset, 1002 coastal plain of the Arctic National Wildlife Refuge, North Slope, Alaska, USA  -  Steven Kazlowski
01407485
Steven Kazlowski / Arctic char (Salvelinus alpinus) catch held by silhouetted woman at sunset, 1002 coastal plain of the Arctic National Wildlife Refuge, North Slope, Alaska, USA
Polar bear (Ursus maritimus) cub plays with a piece of bowhead whale baleen (Balaena mysticetus)along the arctic coast at sunrise, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska...  -  Steven Kazlowski
01407480
Steven Kazlowski / Polar bear (Ursus maritimus) cub plays with a piece of bowhead whale baleen (Balaena mysticetus)along the arctic coast at sunrise, 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska...
Arctic fox (Alopex lagopus) sits upon and feeds on a Bowhead whale (Balaena mysticetus) jawbone, Barter Island, Alaska, USA, November  -  Steven Kazlowski
01363485
Steven Kazlowski / Arctic fox (Alopex lagopus) sits upon and feeds on a Bowhead whale (Balaena mysticetus) jawbone, Barter Island, Alaska, USA, November
Polar bear (Ursus maritimus) sow with spring cubs travel across newly formed pack ice during fall freeze up, off the 1002 area of the Arctic National Wildlife Refuge, Alaska, USA, October  -  Steven Kazlowski
01363484
Steven Kazlowski / Polar bear (Ursus maritimus) sow with spring cubs travel across newly formed pack ice during fall freeze up, off the 1002 area of the Arctic National Wildlife Refuge, Alaska, USA, October
Polar bear (Ursus maritimus) pair of spring cubs sitting next to one another on newly formed pack ice, off the 1002 coastal area of the Arctic National Wildlife Refuge, Alaska, Beaufort Sea, USA, Octo...  -  Steven Kazlowski
01363483
Steven Kazlowski / Polar bear (Ursus maritimus) pair of spring cubs sitting next to one another on newly formed pack ice, off the 1002 coastal area of the Arctic National Wildlife Refuge, Alaska, Beaufort Sea, USA, Octo...
Polar bear (Ursus maritimus) spring cub playfully rolls around on newly formed pack ice, off the 1002 coastal area of the Arctic National Wildlife Refuge, Alaska, Beaufort Sea, USA, October  -  Steven Kazlowski
01363482
Steven Kazlowski / Polar bear (Ursus maritimus) spring cub playfully rolls around on newly formed pack ice, off the 1002 coastal area of the Arctic National Wildlife Refuge, Alaska, Beaufort Sea, USA, October
Polar bear (Ursus maritimus) spring cub playfully rolls around on newly formed pack ice, off the 1002 coastal area of the Arctic National Wildlife Refuge, Alaska, Beaufort Sea, USA, October  -  Steven Kazlowski
01363481
Steven Kazlowski / Polar bear (Ursus maritimus) spring cub playfully rolls around on newly formed pack ice, off the 1002 coastal area of the Arctic National Wildlife Refuge, Alaska, Beaufort Sea, USA, October
Polar bear (Ursus maritimus) pair of sows, one with a spring cub, greet one another on newly formed pack ice along the arctic coast in autumn, 1002 area of the Arctic National Wildlife Refuge, Alaska,...  -  Steven Kazlowski
01363480
Steven Kazlowski / Polar bear (Ursus maritimus) pair of sows, one with a spring cub, greet one another on newly formed pack ice along the arctic coast in autumn, 1002 area of the Arctic National Wildlife Refuge, Alaska,...
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