Anchorage Daily News: It's long been known that the brown bears found on islands in Southeast Alaska are more closely related to polar bears than other brown bears. Now scientists wonder if they're a harbinger of what's to come for polar bears in the warming high Arctic. Researcher Beth Shapiro of the University of California in Santa Cruz told the Canadian Press the bears on Admiralty, Baranof and Chichagof islands (known as the ABC bears) appear to be descended from a polar bear population that got cut off from other...