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  • A radio collared polar bear makes its way across the broken ice pack of the Beaufort Sea. Arctic Ocean
    Polar Bear D232988.jpg
  • Polar Bears International House and education center in Churchill, Manitoba, Canada.
    D1649702.jpg
  • The Polar Bears International House in Churchill, Manitoba, Canada.
    D1653678.jpg
  • The Polar Bears International House in Churchill, Manitoba, Canada.
    D1653670.jpg
  • The Polar Bears International House in Churchill, Manitoba, Canada.
    D1653655.jpg
  • The Polar Bears International House in Churchill, Manitoba, Canada.
    D1653690.jpg
  • BJ Kirschhoffer of Polar Bears International. Svalbard, Norway
    D1331928.jpg
  • Krista Wright, Executive Director of Polar Bears International, bundled up in Canada Goose down jacket while on the Maternal Den Study project. Svalbard, Norway
    D1331912.jpg
  • Dr. Steven Amstrup, lead scientist for the US Geological Survey, darts a female polar bear on the Beaufort Sea. Darting the bears from a helicopter can be extremely treacherous. The pilot has to hover over a running animal that is twisting and turning, dodging and ducking, an animal that feels it's running for its life. This bear is hit directly between the shoulders with an immobilizing dart. It takes anywhere from 4-15 minutes for the drug to take effect and immobilize the bear which will be out for 1-2 hours as the scientists process the data.
    D169923.jpg
  • A polar bear (Ursus maritimus) with an immobilizA polar bear (Ursus maritimus) makes tracks in the snow. these tracks are important for being able to find the bears on the ice for darting and capture.ing dart in it's side makes tracks in the snow. These tracks are important for being able to find the bears on the ice for darting and capture.
    D125422.jpg
  • A polar bear (Ursus maritimus) makes tracks in the snow. These tracks are important for being able to find the bears on the ice for darting and capturing for scientific research.
    D125949.jpg
  • Dr Amstrup prepares to attach a GPS satellite tracking collar to an immobilized polar bear on the Beaufort Sea. The collars are placed on females exclusively since the necks of males get too large for them to work properly. The collars are a high tech way to follow these animals far out onto the ice where humans can't go. The bears are tracked by satellites which helps the scientists determine the home range of individual animals and other details about a particular bear's life such as length of time spent resting or hunting in one area.
    D171752.jpg
  • BJ, Krista, and Nick hauling the remote camera for deployment near a polar bear den site. Svalbard, Norway
    D1331803.jpg
  • Polar bear (Ursus maritimus) mother grooms her cub at Cape Churchill, Manitoba, Canada.
    D00040612.jpg
  • Geoff York, USGS biologist, and Katrina Knott, research assistant, collect data from a polar bear (Ursus maritimus) on the Beaufort Sea ice. Kaktovik, Alaska
    D123694.jpg
  • A female polar bear (Ursus maritimus) comes to investigate the camera cage on Buggy One. Gordon Point on the shores of Hudson Bay near Churchill, Manitoba, Canada
    D107411.jpg
  • Polar bear (Ursus maritimus) hunting an open hole in the sea ice. Svalbard, Norway
    D1607381.jpg
  • John Whiteman displays the Ibutton Thermochron deep core body temperature device that is implanted into polar bears for long-term body temperature data.
    D228018.jpg
  • Greg Durner, USGS Alaska Science Center, surveying the range of denning polar bears in the Arctic National WIldlife Refuge. Alaska
    D00029394.jpg
  • Polar bear (Ursus maritimus) family group. Hudson Bay, Churchill, Manitoba, Canada
    D108378.jpg
  • Polar bear (Ursus maritimus) hunting an open hole in the sea ice. Svalbard, Norway
    D1607434.jpg
  • A polar bear (Ursus maritimus) lies spread out over the ice of the Beaufort Sea. He's immobilized from a tranquilizer and on the verge of waking after USGS biologists have just performed their field tests on him. Kaktovik, Alaska
    D123807.jpg
  • The Maternal Den Study team setting up a remote camera for observing a polar bear den from a great distance. Svalbard, Norway
    D1331839.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking blood from an immobilized large male polar bear.
    D123997.jpg
  • The Maternal Den Study team setting up a remote camera for observing a polar bear den from a great distance. Svalbard, Norway
    D1331818.jpg
  • Polar bear (Ursus maritimus) silhouetted in the setting sun with a sundog, while crossing a frozen lake outside of Churchill, Manitoba.
    D00045991.jpg
  • On the trail home after deploying a remote camera on a polar bear den site. Svalbard, Norway.
    D1481120.jpg
  • Dr. Steve Amstrup, lead biologist for the USGS polar bear capture project, instructing a co-worker on the fine points of shooting a dart gun at a running polar bear from a moving helicopter. Kaktovik, Alaska
    D125196.jpg
  • Aerial view of remote camera deployment on a polar bear den site. Svalbard, Norway
    D1481199.jpg
  • The Maternal Den Study team prepares to head back to the helicopter pickup site after deploying remote cameras on a polar bear den. Svalbard, Norway
    D1331941.jpg
  • The Maternal Den Study team setting up a remote camera for observing a polar bear den from a great distance. Svalbard, Norway
    D1331866.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking field data from an immobilized large male polar bear (Ursus maritimus). Kaktovik, Alaska
    D123987.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking field data from a large, immobilized male polar bear (Ursus maritimus). Kaktovik, Alaska
    D123954.jpg
  • One of the target polar bears that was never captured runs across newly formed ice in the Arctic Ocean.
    D231302.jpg
  • A female polar bear (Ursus maritimus) darted and weak from an immobilizing drug she received from Dr. Steve Amstrup, USGS biologist. Beaufort Sea, Alaska
    D125585.jpg
  • Geoff York, USGS biologist, takes a blood sample of a darted polar bear. Kaktovik, Alaska
    D123567.jpg
  • A polar bear stands for a better view of the helicopter. Arctic Ocean.
    D227320.jpg
  • A polar bear (Ursus maritimus) makes its way across the Beaufort Sea Ice pack. Kaktovik, Alaska
    D125880.jpg
  • Steve Amstrup, lead USGS biologist, and assistant Karyn Rode, taking field data from an immobilized large male polar bear (Ursus maritmus). Kaktovik, Alaska
    D125246.jpg
  • Polar Bear (Ursus maritimus) a large male lies immobilized on the ice as Dr. Steven Amstrup and his assistant head for a female that was darted at the same time and is down on the ice. Beaufort Sea, Alaska
    D170397.jpg
  • The Maternal Den Study team setting up a remote camera for observing a polar bear den from a great distance. Svalbard, Norway
    D1331826.jpg
  • Setting up the remote camera on a polar bear den site. Svalbard, Norway
    D1480771.jpg
  • The Maternal Den Study team pulling a sled with the remote camera that will be used for observing a polar bear den from a great distance. Svalbard, Norway
    D1332058.jpg
  • A female polar bear with a newly painted identifying number on her back and a radio collar around her neck, stands in a groggy disoriented state. She has just emerged from an immobilizing drug used by USGS biologist Steven Amstrup. The number is used to identify the bear from the air so she is not captured again that same year. The number wears off after a couple of weeks.
    D123598.jpg
  • Dr. Steve Amstrup, USGS biologist weighing a large, male polar bear weighing 944 lbs.  on the Beaufort Sea ice pack.
    D124966.jpg
  • On the trail home after deploying a remote camera on a polar bear den site. Svalbard, Norway.
    D1481114.jpg
  • Making final adjustments on the remote camera set out to document a polar bear den site. Svalbard, Norway.
    D1481108.jpg
  • The Maternal Den Study team setting up a remote camera for observing a polar bear den from a great distance. Svalbard, Norway
    D1331596.jpg
  • The Maternal Den Study team setting up a remote camera for observing a polar bear den from a great distance. Svalbard, Norway
    D1331757.jpg
  • Dr Steven Amstrup collects data from a polar bear on the Beaufort Sea, Alaska.
    D171516.jpg
  • Karyn Rode prepares to take data from a large male polar bear on the ice pack of the Beaufort Sea, Alaska.
    D125251.jpg
  • A polar bear (Ursus Maitimus) makes its way over the rugged ice of the Beaufort Sea in Kaktovik, Alaska.
    D123494.jpg
  • Dr. Steven Amstrup and Eric Regehr with a large male polar bear on the Beaufort Sea in Alaska.
    D169626.jpg
  • USGS polar bear team preparing for a day of polar bear research. Kaktovik, Alaska
    D125081.jpg
  • A polar bear (Ursus Maitimus) makes its way over the rugged ice of the Beaufort Sea. Kaktovik, Alaska
    D123495.jpg
  • Polar bear (Ursus maritimus) mother and her cub at Cape Churchill on the shores of Hudson Bay, near Churchill, Manitoba, Canada.
    D00039973.jpg
  • A polar bear (Ursus maritimus) on broken sea ice. Svalbard, Norway.
    D994715.jpg
  • Serum and plasma samples from a polar bear being prepared to be archived.
    D228438.jpg
  • Polar bear (Ursus maritimus) on the frozen ice of Churchill, Manitoba, Canada during the evening.
    00473-24419.jpg
  • Dr. Steve Amstrup, USGS biologist, and assistant Karyn Rode prepare a radio collar to be fitted to a female polar bear on the Beaufort Sea ice pack. Kaktovik, Alaska
    D125178.jpg
  • Portrait of a polar bear mother and her cubs. Hudson Bay, Canada
    00473-05204.jpg
  • Polar bear (Ursus maritimus) mother nursing her cubs. Wapusk National Park, Manitoba, Canada
    D161974.jpg
  • Polar bear (Ursus martimus) mother nursing her very young cubs. Wapusk National Park, near Churchill, Manitoba, Canada
    00473-55602.jpg
  • Geoff York, USGS biologist, prepares a polar bear (Ursus maritimus) darted from the air for data collection. Kaktovik, Alaska
    D123631.jpg
  • John Whiteman with the IButtone Thermochron, a deep core body temperature device that was removed from polar bear #21045. Arctic Ocean
    D230462.jpg
  • John Whiteman cuts open the IButtone Thermochron, a deep core body temperature device that was removed from polar bear #21045. Arctic Ocean
    D230492.jpg
  • Dr. Steve Amstrup, USGS biologist, and Daniel Cox use a weight bar to lift and weigh a small, 365-pound female polar bear. Beaufort Sea
    D125192.jpg
  • Dr. Steve Amstrup, USGS biologist, and field assistant Karyn Rode taking field data from an immobilized large male polar bear.
    D124554.jpg
  • Geoff York, USGS biologist, prepares a radio collar while Katrina Knott, research assistant, paints an ID number on the back of a polar bear. The ID number is to make it easy to see from the air that the bear was captured already.
    D123748.jpg
  • Polar bear (Ursus maritimus) mother and her two cubs at Cape Churchill, near Churchill, Manitoba, Canada.
    D00041714.jpg
  • The polar bear capture team collects data from a female polar bear and her cub. Arctic Ocean
    D228347.jpg
  • Polar bear capture team's field box.
    D228203.jpg
  • Vials of serum from the blood of a polar bear.
    D230437.jpg
  • Dr. Steven Amstrup, lead polar bear scientist for the USGS, checking polar bear tracks on the ice of the Beaufort Sea, Alaska.
    D171915.jpg
  • tSteve Amstrup, lead polar bear biologist for the USGS, prepares a dart that will be filled with Telazol, an imobilizing drug. Kaktovik, Alaska
    D123857.jpg
  • Dr. Steven C. Amstrup checks the paw of polar bear (Ursus maritimus) #20571, a large male that had been tagged years earlier. Kaktovik, Alaska.
    D123973.jpg
  • John Whiteman displays the LButton Thermochron deep core body temperature device that is implanted inside the abdominal wall of a polar bear for long term body temperature data.
    D228026.jpg
  • John Whiteman displays the IButton Thermochron deep core body temperature device that is implanted inside the abdominal wall of a polar bear for long term body temperature data.
    D228002.jpg
  • Dr. Steve Amstrup, USGS bioogist, analyzing data from recent polar bear captures at the U.S. Fish and Wildlife house in Kaktovik, Alaska.
    D125070.jpg
  • Polar bear (Ursus maritimus) mother nursing her cub. Gordon Point, Hudson Bay, Manitoba, Canada
    D1651086.jpg
  • Blood samples from a polar bear. Polar Sea icebreaker, Arctic Ocean
    D230431.jpg
  • A mother polar bear and her two cubs navigate the newly forming and unstable ice of the Chukchi Sea.
    D229348.jpg
  • Dr. Steve Amstrup on a Tundra Buggy watching and photographing polar bears. Canada
    D189332.jpg
  • A mother polar bear and her two cubs navigate the newly forming and unstable ice of the Chukchi Sea.
    D229268.jpg
  • A radio-collared polar bear makes its way across the broken ice pack of the Beaufort Sea. Arctic Ocean
    D232980.jpg
  • A polar bear makes its way across broken ice in the Beaufort Sea.
    D232924.jpg
  • John Whiteman with the IButton Thermochron, deep core body temperature device that was removed from polar bear #21045. Arctic Ocean
    D230466.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking field data from an immobilized large male polar bear.
    D123977.jpg
  • Steve Amstrup, lead USGS biologist, paints a number on the back of an immobilized large male polar bear that was darted for research purposes. Kaktovik, Alaska
    D124009.jpg
  • A large male polar bear, sedated with immobilizing drugs, watches Dr. Steve Amstrup exit from the capture helicopter. Beaufort Sea pack ice, Kaktovik, Alaska
    D125313.jpg
  • Geoff York, USGS biologist, organizing field gear in the garage of the USGS field research station, with polar bear radio collars sitting on the counter in the foreground. Kaktovik, Alaska
    D123846.jpg
  • Polar bear with radio collar hunting an open lead, waiting for seals. Beaufort Sea.
    D232537.jpg
  • BJ Kirschhoffer works on the wind turbine used to produce electricity for a remote polar bear den camera. Svalbard, Norway
    D1481013.jpg
  • A polar bear makes its way across broken ice of the Beaufort Sea.
    D232917.jpg
  • A mother polar bear and her two cubs navigate the newly forming and unstable ice of the Chukchi Sea.
    D229298.jpg
  • Geoff York, a USGS biologist, and Katrina Knott, research assistant, collecting data from a polar bear on the Beaufort Sea ice. They use a block and tackle to take weight measurments. Kaktovik, Alaska
    D123732.jpg
  • A female polar bear gets to her feet, still groggy from the tranquilizing drug used to immobilize her for field data collection by USGS biologist Geoff York.
    D123579.jpg
  • Steve Amstrup. lead biologist for the USGS, leans out of a research helicopter to take aim at a running polar bear to be darted for data collection on the Beaufort sea ice.
    D123896.jpg
  • Steve Amstrup , USGS biologist, taking field data from an immobilized large male polar bear (Ursus maritimus). Kaktovik, Alaska.
    D123939.jpg
  • Steve Amstrup, lead biologist for the USGS, leans out of a research helicopter to take aim at a running polar bear to be darted for data collection. Beaufort Sea ice, Kaktovik, Alaska
    D123902.jpg
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