Polar Bear Movements (IMAGE)

University of Washington

Polar Bear Movements

Caption

The authors compared the movements of 43 adult female polar bears with tags that recorded their positions from 1991 to 1997 (left) with those of 38 adult females tracked from 2009 to 2015 (right). With less sea ice, the bears' movements are restricted to a smaller area and they spend more time close to shore, especially in Greenland.

Credit

Joshua Stevens/NASA Earth Observatory and Kristin Laidre/Uiversity of Washington

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