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A polar bear circled the four biologists as they checked out the house-sized pile of whale bones at Point Barrow, Alaska--the northernmost point of the United States.

Two snowmobiles, whining nearby, were ready to take the scientists back to the city of Barrow. A March sun was setting red against the sea ice, the northern lights began swirling green across the sky and a near-perfect arctic evening was coming to a close when one of the two snowmobiles died.

Read how a University of Alaska biology and wildlife graduate student is adding to scientific knowledge about polar bears in the latest online feature story at http://www.uaf.edu/news/featured/05/polarbear/.