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Young Polar bear (Ursus maritimus) standing and trying to balance in shallow water along the Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, Oc...
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Steven Kazlowski / Young Polar bear (Ursus maritimus) standing and trying to balance in shallow water along the Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, Oc...
Young Polar bear (Ursus maritimus) standing and trying to balance in shallow water along the Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, Oc...
01396844
Steven Kazlowski / Young Polar bear (Ursus maritimus) standing and trying to balance in shallow water along the Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, Oc...
Young Polar bear (Ursus maritimus) standing and trying to balance in shallow water along the Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, Oc...
01396848
Steven Kazlowski / Young Polar bear (Ursus maritimus) standing and trying to balance in shallow water along the Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, Oc...
Two curious young Polar bears (Ursus maritimus), Barter Island, off the 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, October 2011
01396859
Steven Kazlowski / Two curious young Polar bears (Ursus maritimus), Barter Island, off the 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, October 2011
Polar bears (Ursus maritimus) fighting in water. Beaufort Sea , Kaktovik, Alaska, USA. Highly commended in the Polar Passion category of the Nature's Best Photography Competition 2019.
01637242
Diane McAllister / Polar bears (Ursus maritimus) fighting in water. Beaufort Sea , Kaktovik, Alaska, USA. Highly commended in the Polar Passion category of the Nature's Best Photography Competition 2019.
Bumblebee (Bombus sp) on flower, Juneau, Alaska
00598758
Kevin Schafer / Bumblebee (Bombus sp) on flower, Juneau, Alaska
North Pacific humpback whale (Megaptera novaeangliae kuzira) breaching, Icy Strait, Alaska, USA. July.
01620025
Tony Wu / North Pacific humpback whale (Megaptera novaeangliae kuzira) breaching, Icy Strait, Alaska, USA. July.
Flock of Western sandpipers (Calidris mauri) taking flight from salt marsh, Southern California, USA.
01628555
John Chan / Flock of Western sandpipers (Calidris mauri) taking flight from salt marsh, Southern California, USA.
Brown bear (Ursus arctos) searching for clams on tidal mudflat with waterbirds. Lake Clark National Park, Alaska. August.
01626030
John Shaw / Brown bear (Ursus arctos) searching for clams on tidal mudflat with waterbirds. Lake Clark National Park, Alaska. August.
Horned Puffin (Fratercula corniculata) flying over a pattern of kelp and sea foam, photographed from above, St. Paul, Pribilof Islands, Alaska, USA. July.
01622751
Marie Read / Horned Puffin (Fratercula corniculata) flying over a pattern of kelp and sea foam, photographed from above, St. Paul, Pribilof Islands, Alaska, USA. July.
Abstract patterns of reflected sky and clouds on the ocean with a silhouetted Red-faced cormorant (Phalarocorax urile) in flight, St. Paul Island, Pribilof Islands, Alaska, USA, July.
01622783
Marie Read / Abstract patterns of reflected sky and clouds on the ocean with a silhouetted Red-faced cormorant (Phalarocorax urile) in flight, St. Paul Island, Pribilof Islands, Alaska, USA, July.
Pine Grosbeak (Pinicola enucleator) male, Alaska
00594535
Alan Murphy/ BIA / Pine Grosbeak (Pinicola enucleator) male, Alaska
Bald Eagle (Haliaeetus leucocephalus) fishing, Alaska
00594386
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) fishing, Alaska
Bald Eagle (Haliaeetus leucocephalus) fishing, Alaska
00594385
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) fishing, Alaska
Sea otter (Enhydra lutris) resting on sea ice, Alaska, USA, June
01607505
Danny Green / Sea otter (Enhydra lutris) resting on sea ice, Alaska, USA, June
Sea otter (Enhydra lutris) resting amongst sea ice, Alaska, USA, June
01607503
Danny Green / Sea otter (Enhydra lutris) resting amongst sea ice, Alaska, USA, June
Sea otters (Enhydra lutris) resting on ice, Alaska, USA, June
01607501
Danny Green / Sea otters (Enhydra lutris) resting on ice, Alaska, USA, June
Humpback Whale (Megaptera novaeangliae) pod cooperative bubble-net feeding, Frederick Sound, Alaska
00589905
Paul Souders/ Worldfoto / Humpback Whale (Megaptera novaeangliae) pod cooperative bubble-net feeding, Frederick Sound, Alaska
Humpback Whale (Megaptera novaeangliae) pod cooperative bubble-net feeding, Frederick Sound, Alaska
00589904
Paul Souders/ Worldfoto / Humpback Whale (Megaptera novaeangliae) pod cooperative bubble-net feeding, Frederick Sound, Alaska
Brown Bear (Ursus arctos) in river, Katmai National Park, Alaska
00582562
Chase Dekker / Brown Bear (Ursus arctos) in river, Katmai National Park, Alaska
Humpback Whale (Megaptera novaeangliae) blowing or spouting and fluking, Southeast Alaska, USA, August.
01612000
Mark Carwardine / Humpback Whale (Megaptera novaeangliae) blowing or spouting and fluking, Southeast Alaska, USA, August.
Grizzly Bear (Ursus arctos horribilis) with Coho Salmon (Oncorhynchus kisutch) prey, Lake Clark National Park, Alaska
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Sean Crane / Grizzly Bear (Ursus arctos horribilis) with Coho Salmon (Oncorhynchus kisutch) prey, Lake Clark National Park, Alaska
Humpback Whale (Megaptera novaeangliae) trio gulp feeding, Inside Passage, southeast Alaska
00584705
Hiroya Minakuchi / Humpback Whale (Megaptera novaeangliae) trio gulp feeding, Inside Passage, southeast Alaska
Taiga and snow-covered mountains in autumn, Glacier Bay National Park, Alaska
00584067
Andrew Peacock / Minden / Taiga and snow-covered mountains in autumn, Glacier Bay National Park, Alaska
Northern Hawk Owl (Surnia ulula) pair at nest, Alaska
00584862
Michael Quinton / Northern Hawk Owl (Surnia ulula) pair at nest, Alaska
Northern Hawk Owl (Surnia ulula) peering from nest, Alaska
00584861
Michael Quinton / Northern Hawk Owl (Surnia ulula) peering from nest, Alaska
Northern Hawk Owl (Surnia ulula) parent with chicks at nest, Alaska
00584834
Michael Quinton / Northern Hawk Owl (Surnia ulula) parent with chicks at nest, Alaska
Snowshoe Hare (Lepus americanus) browsing on a Pussy Willow (Salix discolor) twig in winter, Alaska
00584810
Michael Quinton / Snowshoe Hare (Lepus americanus) browsing on a Pussy Willow (Salix discolor) twig in winter, Alaska
Snowshoe Hare (Lepus americanus) browsing on a Pussy Willow (Salix discolor) twig in winter, Alaska
00584809
Michael Quinton / Snowshoe Hare (Lepus americanus) browsing on a Pussy Willow (Salix discolor) twig in winter, Alaska
Snowshoe Hare (Lepus americanus) browsing on a Pussy Willow (Salix discolor) twig in winter, Alaska
00584808
Michael Quinton / Snowshoe Hare (Lepus americanus) browsing on a Pussy Willow (Salix discolor) twig in winter, Alaska
Humpback Whale (Megaptera novaeangliae) pod gulp feeding, Inside Passage, southeast Alaska
00584721
Hiroya Minakuchi / Humpback Whale (Megaptera novaeangliae) pod gulp feeding, Inside Passage, southeast Alaska
Humpback Whale (Megaptera novaeangliae) pod gulp feeding, Inside Passage, southeast Alaska
00584720
Hiroya Minakuchi / Humpback Whale (Megaptera novaeangliae) pod gulp feeding, Inside Passage, southeast Alaska
Polar bear (Ursus maritimus), female with two cubs, on a barrier island outside Kaktovik, Alaska, USA.
01604709
Sylvain Cordier / Polar bear (Ursus maritimus), female with two cubs, on a barrier island outside Kaktovik, Alaska, USA.
Taiga and coastal snow-covered mountains in autumn, Glacier Bay National Park, Alaska
00584068
Andrew Peacock / Taiga and coastal snow-covered mountains in autumn, Glacier Bay National Park, Alaska
Bald eagle (Haliaeetus leucocephalus) in flight, Alaska, USA, February
01601583
Danny Green / Bald eagle (Haliaeetus leucocephalus) in flight, Alaska, USA, February
Bald eagle (Haliaeetus leucocephalus) head portrait, Alaska, USA, February
01601582
Danny Green / Bald eagle (Haliaeetus leucocephalus) head portrait, Alaska, USA, February
Bald eagle (Haliaeetus leucocephalus) in flight,  Alaska, USA, February
01601578
Danny Green / Bald eagle (Haliaeetus leucocephalus) in flight, Alaska, USA, February
Aurora borealis over forest, Alaska
00072857
Michio Hoshino / Aurora borealis over forest, Alaska
Galapagos Shark (Carcharhinus galapagensis), Reviliagigedo Island, Mexico
00581519
Ralph Pace / Galapagos Shark (Carcharhinus galapagensis), Reviliagigedo Island, Mexico
Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...
00581517
Ralph Pace / Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...
Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...
00581461
Ralph Pace / Silky Shark (Carcharhinus falciformis), Galapagos Shark (Carcharhinus galapagensis), Dusky Shark (Carcharhinus obscurus), and Black-tip Shark (Carcharhinus limbatus) group working with Yellowfin Tuna...
Bald Eagle (Haliaeetus leucocephalus) flying, Alaska
00579250
Marion Vollborn/ BIA / Bald Eagle (Haliaeetus leucocephalus) flying, Alaska
Dall's Sheep (Ovis dalli) ram, Denali National Park, Alaska
00578905
Donald M. Jones / Dall's Sheep (Ovis dalli) ram, Denali National Park, Alaska
Collared Pika (Ochotona collaris), Denali National Park, Alaska
00578866
Donald M. Jones / Collared Pika (Ochotona collaris), Denali National Park, Alaska
Caribou (Rangifer tarandus) bull in tundra, Denali National Park, Alaska
00578798
Donald M. Jones / Caribou (Rangifer tarandus) bull in tundra, Denali National Park, Alaska
Long-tailed Ground Squirrel (Spermophilus undulatus) browsing, central Alaska
00578792
Donald M. Jones / Long-tailed Ground Squirrel (Spermophilus undulatus) browsing, central Alaska
Bald Eagle (Haliaeetus leucocephalus) hunting, Alaska
00576786
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) hunting, Alaska
Bald Eagle (Haliaeetus leucocephalus) in snowfall, Alaska
00576784
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) in snowfall, Alaska
Bald Eagle (Haliaeetus leucocephalus) hunting in snow fall, Alaska
00576783
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) hunting in snow fall, Alaska
Bald Eagle (Haliaeetus leucocephalus) hunting, Alaska
00575794
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) hunting, Alaska
Bald Eagle (Haliaeetus leucocephalus) flying, Alaska
00575792
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) flying, Alaska
Grizzly Bear (Ursus arctos)  eating a fish, Lake Clarke National Park, Alaska, August
01583533
Danny Green / Grizzly Bear (Ursus arctos) eating a fish, Lake Clarke National Park, Alaska, August
Northern Flicker (Colaptes auratus) carrying fecal sac from nest cavity in forest, Alaska
00573005
Michael Quinton / Northern Flicker (Colaptes auratus) carrying fecal sac from nest cavity in forest, Alaska
Steller's Sea Lion (Eumetopias jubatus) with Pink Salmon (Oncorhynchus gorbuscha) prey, Alaska
00573000
Michael Quinton / Steller's Sea Lion (Eumetopias jubatus) with Pink Salmon (Oncorhynchus gorbuscha) prey, Alaska
American Marten (Martes americana) emerging from tree cavity, Alaska
00572993
Michael Quinton / American Marten (Martes americana) emerging from tree cavity, Alaska
American Marten (Martes americana) sleeping in tree cavity, Alaska
00572992
Michael Quinton / American Marten (Martes americana) sleeping in tree cavity, Alaska
Northern sea otter (Enhydra lutris kenyoni) sleeping at dusk, Kachemak Bay, Alaska, USA.
01534918
Frederique Olivier / Northern sea otter (Enhydra lutris kenyoni) sleeping at dusk, Kachemak Bay, Alaska, USA.
Northern sea otter (Enhydra lutris kenyoni) swimming, floating on its back, Kachemak Bay, Alaska, USA.
01534916
Frederique Olivier / Northern sea otter (Enhydra lutris kenyoni) swimming, floating on its back, Kachemak Bay, Alaska, USA.
Northern sea otter (Enhydra lutris kenyoni) sleeping, floating on the surface, Kachemak Bay, Alaska, USA.
01534910
Frederique Olivier / Northern sea otter (Enhydra lutris kenyoni) sleeping, floating on the surface, Kachemak Bay, Alaska, USA.
Polar bear (Ursus maritimus) mother with two juveniles walking along ice edge during autumn freeze up, Beaufort Sea, off Arctic coast, Alaska
01499923
Steven Kazlowski / Polar bear (Ursus maritimus) mother with two juveniles walking along ice edge during autumn freeze up, Beaufort Sea, off Arctic coast, Alaska
Grizzly Bear / Coastal Brown Bear (Ursus arctos horribilis) mother with two spring cubs, one riding on her back, Lake Clark National Park, Alaska, USA. June.
01478979
Ingo Arndt / Grizzly Bear / Coastal Brown Bear (Ursus arctos horribilis) mother with two spring cubs, one riding on her back, Lake Clark National Park, Alaska, USA. June.
Grizzly bear (Ursus arctos horribilis) picture taken with a remote camera car, Alaska, July.
01446196
Ingo Arndt / Grizzly bear (Ursus arctos horribilis) picture taken with a remote camera car, Alaska, July.
Grizzly bear (Ursus arctos horribilis) silhouette, Lake Clark National Park, Alaska
01446124
Ingo Arndt / Grizzly bear (Ursus arctos horribilis) silhouette, Lake Clark National Park, Alaska
Grizzly bear (Ursus arctos horribilis) silhouette at sunset, Lake Clark National Park, Alaska, USA, July.
01446120
Ingo Arndt / Grizzly bear (Ursus arctos horribilis) silhouette at sunset, Lake Clark National Park, Alaska, USA, July.
Grizzly bear (Ursus arctos horribilis) mother with two cubs catching salmon, Lake Clark National Park, Alaska, USA, September
01392988
Ingo Arndt / Grizzly bear (Ursus arctos horribilis) mother with two cubs catching salmon, Lake Clark National Park, Alaska, USA, September
Grizzly bear (Ursus arctos horribilis) portrait, Lake Clark National Park, Alaska, USA, September.
01445916
Ingo Arndt / Grizzly bear (Ursus arctos horribilis) portrait, Lake Clark National Park, Alaska, USA, September.
Glaucous winged gull (Larus glaucescens) calling, Lake Clark National Park, Alaska, USA, August
01385897
Ingo Arndt / Glaucous winged gull (Larus glaucescens) calling, Lake Clark National Park, Alaska, USA, August
Grizzly Bear (Ursus arctos horribilis) waiting for salmon under moonlit sky, Lake Clark National Park, Alaska, USA, August
01385915
Ingo Arndt / Grizzly Bear (Ursus arctos horribilis) waiting for salmon under moonlit sky, Lake Clark National Park, Alaska, USA, August
Grizzly Bear (Ursus arctos horribilis) waiting for salmon at full moon, Lake Clark National Park, Alaska, USA, August
01385914
Ingo Arndt / Grizzly Bear (Ursus arctos horribilis) waiting for salmon at full moon, Lake Clark National Park, Alaska, USA, August
Rising full moon at Lake Clark National Park, Alaska, USA, August 2010
01385903
Ingo Arndt / Rising full moon at Lake Clark National Park, Alaska, USA, August 2010
Grizzly Bear (Ursus arctos horribilis) two cubs resting, Lake Clark National Park, Alaska, USA, August
01385916
Ingo Arndt / Grizzly Bear (Ursus arctos horribilis) two cubs resting, Lake Clark National Park, Alaska, USA, August
Grizzly Bear (Ursus arctos horribilis) digging for clams on tidal flats, Lake Clark National Park, Alaska.
01279738
Ingo Arndt / Grizzly Bear (Ursus arctos horribilis) digging for clams on tidal flats, Lake Clark National Park, Alaska.
Brown / Grizzly Bear (Ursus arctos horribilis)  tracks on tidal flats, Alaska, USA
01221994
Ingo Arndt / Brown / Grizzly Bear (Ursus arctos horribilis) tracks on tidal flats, Alaska, USA
Moonrise at Lake Clake National Park and Preserve, Alaska, USA
01221993
Ingo Arndt / Moonrise at Lake Clake National Park and Preserve, Alaska, USA
Brown / Grizzly Bear (Ursus arctos horribilis)  female with two cubs crossing river, Alaska, USA
01221995
Ingo Arndt / Brown / Grizzly Bear (Ursus arctos horribilis) female with two cubs crossing river, Alaska, USA
Three Sea otters (Enhydra lutris) resting on ice, Alaska, June
01577702
Danny Green / Three Sea otters (Enhydra lutris) resting on ice, Alaska, June
Female Grizzly bear (Ursus arctos horribilis) looking around and grooming, with four cubs playing nearby, Naknek Lake, Katmai National Park, Alaska, USA, July.
01553760
Eric Baccega / Female Grizzly bear (Ursus arctos horribilis) looking around and grooming, with four cubs playing nearby, Naknek Lake, Katmai National Park, Alaska, USA, July.
Sea Otter (Enhydra lutris) orphaned pup, three weeks old, Alaska SeaLife Center, Seward, Alaska
00564868
Suzi Eszterhas / Sea Otter (Enhydra lutris) orphaned pup, three weeks old, Alaska SeaLife Center, Seward, Alaska
Humpback whales (Megaptera novaeangliae) bubble net feeding with mouths open at surface, example of cooperative hunting, Chatham Strait, Alaska, USA July
01552062
Tony Wu / Humpback whales (Megaptera novaeangliae) bubble net feeding with mouths open at surface, example of cooperative hunting, Chatham Strait, Alaska, USA July
Pine Grosbeak (Pinicola enucleator) male, Alaska
00563533
Alan Murphy/ BIA / Pine Grosbeak (Pinicola enucleator) male, Alaska
Downy Woodpecker (Picoides pubescens) female, Alaska
00563393
Alan Murphy/ BIA / Downy Woodpecker (Picoides pubescens) female, Alaska
Boreal Chickadee (Poecile hudsonicus) in pine, Alaska
00563349
Alan Murphy/ BIA / Boreal Chickadee (Poecile hudsonicus) in pine, Alaska
Boreal Chickadee (Poecile hudsonicus) during snowfall, Alaska
00563347
Alan Murphy/ BIA / Boreal Chickadee (Poecile hudsonicus) during snowfall, Alaska
Bald Eagle (Haliaeetus leucocephalus) striking at fish, Alaska
00563320
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) striking at fish, Alaska
Bald Eagle (Haliaeetus leucocephalus) striking at fish, Alaska
00563313
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) striking at fish, Alaska
Bald Eagle (Haliaeetus leucocephalus) flying, Alaska
00563311
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) flying, Alaska
Bald Eagle (Haliaeetus leucocephalus) flying, Alaska
00563309
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) flying, Alaska
Bald Eagle (Haliaeetus leucocephalus) striking at fish, Alaska
00563307
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) striking at fish, Alaska
Bald Eagle (Haliaeetus leucocephalus), Alaska
00563306
Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus), Alaska
Coastal brown bear (Ursus arctos) fishing, Lake Clarke National Park, Alaska, September
01545694
Danny Green / Coastal brown bear (Ursus arctos) fishing, Lake Clarke National Park, Alaska, September
Coastal brown bears (Ursus arctos) resting, Lake Clarke National Park, Alaska, September
01545693
Danny Green / Coastal brown bears (Ursus arctos) resting, Lake Clarke National Park, Alaska, September
Coastal brown bear (Ursus arctos) resting, Lake Clarke National Park, Alaska, September
01545692
Danny Green / Coastal brown bear (Ursus arctos) resting, Lake Clarke National Park, Alaska, September
Coastal brown bear (Ursus arctos) eating a fish, Lake Clarke National Park, Alaska, September
01545691
Danny Green / Coastal brown bear (Ursus arctos) eating a fish, Lake Clarke National Park, Alaska, September
Moose Bull (Alces alces) walking in forest clearing, Denali National Park, USA, September
01545683
Danny Green / Moose Bull (Alces alces) walking in forest clearing, Denali National Park, USA, September
Caribou / Reindeer bull (Rangifer tarandus) close-up grazing, Denali National Park, Alaska, USA, September
01545671
Danny Green / Caribou / Reindeer bull (Rangifer tarandus) close-up grazing, Denali National Park, Alaska, USA, September
Coastal brown bears (Ursus arctos) fighting, Lake Clarke National Park, Alaska, September
01545657
Danny Green / Coastal brown bears (Ursus arctos) fighting, Lake Clarke National Park, Alaska, September