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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 in Kaktovik, Alaska.

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Filename: D123892.jpg
Image Size: 700x465 / 96.2KB; www.NaturalExposures.com; Alaska Arctic Beaufort Sea Horizontal Katovik PBI Polar Bear Research Ursus Maritimus Wildlife Research people science scientific research
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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 in Kaktovik, Alaska.