ANCHORAGE, Alaska (AP) — A 1-year-old Australian shepherd took an epic trek across 150 miles (241 kilometers) of frozen Bering Sea ice that included being bitten by a seal or polar bear before he was safely returned to his home in Alaska. She used airline points to get her dog back to Gambell on a regional air carrier last week, a charter that was transporting athletes for the Bering Strait School District’s Native Youth Olympics tournament. Except for a swollen leg, with large bite marks from an unidentified animal, Nanuq was in pretty good health