Stock Photo: Polar bear (Ursus maritimus) footprints in the snow along a barrier island during Fall freeze up, Bernard Spit, off the 1002 area of the Arctic National Wildlife Refuge, Alaska.

Stock Photo: 4340-2367 Polar bear (Ursus maritimus) footprints in the snow along a barrier island during Fall freeze up, Bernard Spit, off the 1002 area of the Arctic National Wildlife Refuge, Alaska.