Melting sea ice keeps hungry polar bears on land
Wednesday, March 20, 2013 - 17:01
in Earth & Climate
By Tanya Lewis, LiveSciencePolar bears, the iconic victims of climate change, are shifting their migration patterns because of changes in sea ice. The bears are arriving on land earlier and departing later, a new study found, and it's threatening their access to food.A team of researchers studied the migration patterns of polar bears (Ursus maritimus) in Hudson Bay, Canada, using satellite-tra...