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  • 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
  • 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
  • Dr. Steve Amstrup on a Tundra Buggy watching and photographing polar bears. Canada
    D189332.jpg
  • Dr. Steve Amstrup, leaning from a moving helicopter, takes careful aim with his dart gun used to inject an immobilizing drug into a polar bear. Beaufort Sea ice pack, Kaktovik, Alaska
    D125722.jpg
  • Dr. Steve Amstrup, USGS biologist, and assistant Karyn Rode preparing to collect data from a small female polar bear (Ursus maritimus). Beaufort Sea ice pack, Kaktovik, Alaska
    D125131.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
  • Dr. Steve Amstrup and assistant Karyn Rode make good use of their time while waiting for clear weather. Kaktovik, Alaska.
    D125639.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking field data from an immobilized large male polar bear (Ursus maritimus). Kaktovik, Alaska
    D123987.jpg
  • USGS biologist Dr. Steve Amstrup and assistant Karyn Rode attempt to lift a small 365-pound female polar bear on the Beaufort Sea ice pack.
    D125184-P.jpg
  • Dr Steven Amstrup on a Tundra Buggy.
    D189331.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. 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
  • Dr. Steve Amstrup, USGS biologist, takes the skull measurement of a large male polar bear on the ice pack of the Beaufort Sea. A group of biologists lead by Dr. Amstrup, head to the Beaufort Sea pack ice each year to collect data on this region's polar bear population. I spent two weeks helping them with their research and documenting their project. This is part of the Tri-P, Polar Population Project, sponsored in part by Polar Bears International to census Arctic regions for an accurate count of the world's remaining polar bears
    D124909.jpg
  • Steve Amstrup, lead polar bear biologist for the USGS, prepares a dart that will be filled with telezol, an imobilizing drug. Kaktovik, Alaska
    D123862.jpg
  • Dr. Steve Amstrup with a tranqulized polar bear (Ursus maritimus) on the ice pack of the Beaufort Sea. Kaktovik, Alaska
    D124625-P.jpg
  • A polar bear cub begins to wake from an immobilizing drug. Dr. Steve Amstrup and assistant work on its mother in the background. The cub's lip has green dye from a tattoo that was applied to the inside of his lips. Scientists will use the tatoo to identify him in the future.
    D170130.jpg
  • Dr. Steven Amstrup and Susie Miller collect the Bioelectric Impedance Analysis (BIA) that quantifies fat reserves of a recently immobilized polar bear on the Beaufort Sea, Alaska.
    D170791.jpg
  • Dr. Steven Amstrup collects data from a polar bear on the Beaufort Sea, Alaska.
    D171497-P.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking field data from a large, immobilized male polar bear (Ursus maritimus). Kaktovik, Alaska
    D123954.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking blood from an immobilized large male polar bear.
    D123997.jpg
  • Dr. Steven Amstrup and assistant Karyn Rode prepare a large male polar bear for scientific data collection they perform out on the ice of the Bering Sea. This large specimen was captured after being immobilized with a dart from a helicopter. This adult male wasn't even over 1,000 pounds, unlike many Dr. Amstrup captured in the 1980s that would tip the scales considerably over that 1,000-pound mark. Alaska
    D125246.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking blood from an immobilized large male polar bear.
    D123995.jpg
  • Dr. Steve Amstrup, USGS biologist weighing a large, male polar bear weighing 944 lbs.  on the Beaufort Sea ice pack.
    D124966.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking a biopsy from an immobilized large male polar bear.
    D123949.jpg
  • Dr Steven Amstrup collects data from a polar bear on the Beaufort Sea, Alaska.
    D171516.jpg
  • Dr. Steve Amstrup, USGS biologist, and field assistant Karyn Rode taking field data from an immobilized large male polar bear.
    D124554.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
  • Steve Amstrup, lead polar bear biologist for the USGS, prepares a dart that will be filled with Telazol, an imobilizing drug. Kaktovik, Alaska
    D123857.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking field data from an immobilized large male polar bear.
    D123977.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
  • Dr. Steve Amstrup, USGS biologist, and Doc Gohmert, chopper pilot, prepare to land near an immobilized polar bear (Ursus maritimus). Beaufort Sea ice pack, Kaktovik, Alaska
    D125960.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, lead USGS biologist, taking field data from an immobilized large male polar bear. Kaktovik, Alaska
    D123981.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
  • Dr. Steve Amstrup working with a female polar bear that is coming out of an immobilizing drug on the Beaufort Sea ice pack.
    D125193.jpg
  • Dr. Steven Amstrup shows the canines of a polar bear. Beaufort Sea, Alaska
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  • 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
  • Two polar bears play for the camera as Dr. Moore and Dr. Amstrup answer questions for a video conference from Buggy One.
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  • Dr. Steven Amstrup with a polar bear on the Beaufort Sea, Alaska.
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  • USGS polar bear team preparing for a day of polar bear research. Kaktovik, Alaska
    D125081.jpg
  • Dr. Steve Amstrup weighs a polar bear on the Beaufort Sea, Alaska.
    D171484.jpg
  • Dr. Steve Amstrup, USGS biologist, takes steady aim from the helicopter as he prepares to dart a polar bear on the ice pack of the Beaufort Sea. Kaktovik, Alaska
    D124463.jpg
  • Dr. Steve Amstrup shows assitants how to shoot a dart gun from the window of the capture helicopter. Kaktovik, Alaska.
    D124775.jpg
  • Steve Amstrup , lead USGS biologist, taking field data from an immobilized large male polar bear.
    D125255.jpg
  • Dr Steve Amstrup collecting data from an immobilized polar bear. Beaufort Sea, Alaska..
    D171755.jpg
  • Steve Amstrup , lead USGS biologist, paints a number on the back of an immobilized large male polar bear (Ursus maritimus) that was darted for research purposes. Kaktovik, Alaska.
    D124005.jpg
  • Steve Amstrup , lead USGS biologist, and assistant Karyn Rode, taking field data from an immobilized large, male, polar bear.
    D125285.jpg
  • Dr. Steve Amstrup, USGS biologist and assistant Kristin Simac, prepare a large male, polar bear for a test called Body Mass Index (BMI) which measures the fat mass of individual bears.
    D124868.jpg
  • Polar Bears International hosting a video conference from Buggy One on the shores of Hudson, Bay. PBI president BJ Kirschhoffer attches mike to Dr. Steve Amstrup, Dr. Andy Derocher and Dr. Don Moore,
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  • Dr. Steve Amstrup, leaning from a moving helicopter, takes careful aim with his dart gun used to inject immobilizing drug in to a polar bear. Beaufort Sea ice pack, Kaktovik, Alaska.
    D125717.jpg
  • Dr. Steve Amstrup , USGS biologist and Karyn Rode, field assitant, taking field data from an immobilized large male polar bear (Ursus maritimus). Kaktovik, Alaska..
    D124571.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking field data from an immobilized large male polar bear (Ursus maritimus). Kaktovik, Alaska.
    D123989.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking field data from an immobilized large male polar bear (Ursus maritimus). Kaktovik, Alaska..
    D123940.jpg
  • Kristin Simac, researach assitant, and Dr. Steve Amstrup, USGS biologist, prepare a large male polar bear (Ursus maritimus) for data collection Kaktovik, Alaska.
    D125005.jpg
  • Dr. Steve Amstrup shows assitants how to shoot a dart gun from the window of the capture helicopter. Kaktovik, Alaska.
    D124782.jpg
  • Polar Bears International hosting a video conference from Buggy One on the shores of Hudson, Bay. PBI president Robert Buchanan, Dr. Steve Amstrup, Dr. Andy Derocher and Dr. Don Moore,
    D143421.jpg
  • Steve Amstrup , lead USGS biologist, and assistant Karyn Rode, taking field data from an immobilized large, male, polar bear.
    D125259.jpg
  • Dr Steve Amstrup weighs a polar bear on the Beaufort Sea, Alaska
    D171488.jpg
  • Polar Bears International hosting a video conference from Buggy One on the shores of Hudson, Bay. PBI president Robert Buchanan, Dr. Steve Amstrup, Dr. Andy Derocher and Dr. Don Moore,
    D143405.jpg
  • Dr. Steve Amstrup, leaning from a moving helicopter, takes careful aim with his dart gun used to inject immobilizing drug in to a polar bear. Beaufort Sea ice pack. Kaktovik, Alaska.
    D125800.jpg
  • Dr. Steve Amstrup at the Waldo Arms Hotel in Kaktovik, Alaska.
    D125702.jpg
  • Steve Amstrup and Geoff York, USGS biologists, using a block and tackle device to take the weight of a large male polar bear (Ursus maritimus).  He was 982 lbs. Kaktovik, Alaska.
    D123959.jpg
  • Steve Amstrup , lead USGS biologist, and assistant Karyn Rode, taking field data from an immobilized large, male, polar bear.
    D125261.jpg
  • Dr. Steve Amstrup, USGS biologist and assistant karyn Rode preparing a radio collar to be fitted to a female polar bear on the Beaufort Sea ice pack.
    D125169.jpg
  • Steve Amstrup, lead biologist for the USGS, admisters additional telezol , an immobilizing drug to a large male polar bear (Ursus maritimus). Kaktovik, Alaska.
    D123926.jpg
  • Doc Gohmert and Arnold Turner spend time at the Fish and Wildlife house in Kaktovik waiting for the weather to clear so they can continue capturing polar bears with Dr. Steve Amstrup of the USGS. Kaktovik, Alaska.
    D125620.jpg
  • Dr. Steve Amstrup, USGS biologist, weighing a large, male polar bear (Ursus maritimus) weighing 944 pouns on the Beaufort Sea ice pack. Kaktovik, Alaska.
    D124965.jpg
  • Dr. Steve Amstrup, USGS biologist and assistant, Karyn Rode, using a (BIA) Bio Electical Impedance Analysis device, to check the weight of a small, female, polar bear. Beaufort Sea ice pack.
    D125160.jpg
  • Dr. Steve Amstrup, USGS USGS biologist and assistant, Karyn Rode, preparing to collect data from a small, female, polar bear. Beaufort Sea ice pack.
    D125148.jpg
  • Dr. Steve Amstrup , USGS biologist, and Karyn Rode, field assitant, taking field data from an immobilized large male polar bear (Ursus maritimus). Kaktovik, Alaska.
    D124519.jpg
  • Steve Amstrup , lead USGS biologist, paints a number on the back of an immobilized large male polar bear (Ursus maritimus) that was darted for research purposes. Kaktovik, Alaska.
    D124007.jpg
  • Polar Bears International hosting a video conference from Buggy One on the shores of Hudson, Bay. PBI president Robert Buchanan, Dr. Steve Amstrup, Dr. Andy Derocher and Dr. Don Moore,
    D143456.jpg
  • Dr Steve Amstrup and and crew collecting a polar bear. Beaufort Sea, Alaska..
    D171730.jpg
  • Dr. Steve Amstrup collecting polar bear data on the Beaufort Sea near Kaktovik, Alaska.
    D170410.jpg
  • Steve Amstrup , lead USGS biologist, and assistant Karyn Rode, taking field data from an immobilized large, male, polar bear.
    D125268.jpg
  • Dr. Steve Amstrup, USGS biologist and assistant, Karyn Rode, preparing to collect data from a small, female, polar bear. Beaufort Sea ice pack.
    D125115.jpg
  • Dr. Steve Amstrup, USGS bioogist, analizing data from recent polar bear captures at the US Fish & Wildlife house in Kaktovik, Ak.
    D125071.jpg
  • Steve Amstrup and Geoff York, USGS biologists, taking a biopsy from an immobilized large male, polar bear (Ursus maritimus). Kaktovik, Alaska.
    D123942.jpg
  • Steve Amstrup, lead polar bear biologist for the USGS prepares a dart that will be filled with telezol, an imobilizing drug. Kaktovik, Alaska.
    D123865.jpg
  • Polar Bears International hosting a video conference from Buggy One on the shores of Hudson, Bay. PBI president Robert Buchanan, Dr. Steve Amstrup, Dr. Andy Derocher and Dr. Don Moore,
    D143450.jpg
  • Dr. Steve Amstrup, USGS biologist and assitant Kristin Simac, work at rolling over a large male polar bear weighing 944 lbs. Beaufort Sea ice pack.
    D124866.jpg
  • Dr. Steve Amstrup , USGS biologist and Karyn Rode, field assitant, taking field data from an immobilized large male polar bear (Ursus maritimus). Kaktovik, Alaska..
    D124546.jpg
  • BJ Kirschhoffer and Dr. Steve Amstrup in Buggy One.
    D143459.jpg
  • Steve Amstrup, lead USGS polar bear biologist prepares for a day of field work in Kaktovik, Alaska.
    D123851.jpg
  • Dr. Steve Amstrup, USGS biologist and assistant Kristin Simac, prepare a large male, polar bear for a test called Body Mass Index (BMI) which measures the fat mass of individual bears.
    D125016.jpg
  • Steve Amstrup , lead USGS biologist, taking field data from an immobilized large male polar bear.
    D125240.jpg
  • BJ Kirschhoffer and Dr. Steve Amstrup in Buggy One.
    D143457.jpg
  • Steve Amstrup discusses polar bears with Linda Pendry. Churchill, Manitobe.
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  • Steve Amstrup discusses polar bears with Linda Pendry. Churchill, Manitobe.
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  • Steve Amstrup from Polar Bears International discusses polar bear issues with VIP guests on the Tundra Buggy.
    D460419.jpg
  • Tim May and Steve Amstrup.
    D460461.jpg
  • Dr. Steve Amstrup with a tranqulized polar bear ( Ursus maritimus) on the ice pack of the Beaufort Sea. Kaktovik, Alaska.
    D124663.jpg
  • Karyn Rode and Dr. Steve Amstrup prepare a large male polar bear (Ursus maritimus) for a test called Body Mass Index (BMI). Kaktovik, Alaska.
    D124612.jpg
  • Dr. Steve Amstrup, USGS biologist  preparing to collect data from a small, female, polar bear. Beaufort Sea ice pack.
    D125110.jpg
  • Dr. Steve Amstrup with a tranqulized polar bear ( Ursus maritimus) on the ice pack of the Beaufort Sea. Kaktovik, Alaska.
    D124642.jpg
  • Dr. Steve Amstrup, USGS biologist, prepares to take data from a large male polar bear on the Beaufort Sea ice pack. Kaktovik, Alaska
    D125753.jpg
  • Dr. Steve Amstrup , USGS biologist, and Karyn Rode, field assitant, weighing a large male polar bear (Ursus maritimus) on the ice pack of the Beaufort Sea. Kaktovic, Alaska.
    D124605.jpg
  • Steve Amstrup, lead biologist for the USGS, uses a block and tackle device to weigh a large male polar bear (Ursus maritimus). He weighed 982 lbs. Kaktovik, Alaska.
    D123967.jpg
  • Dr. Steve Amstrup, USGS biologist and assistant, Karyn Rode, preparing to collect data from a small, female, polar bear. Beaufort Sea ice pack.
    D125118.jpg
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