Lost dog's epic sea-ice journey ends in heartwarming homecoming.

A one-year-old Australian shepherd named Nanuq took an epic trek across 150 miles of frozen Bering Sea ice, including being bitten by a seal or polar bear, before he was safely returned to his home in Alaska. Nanuq disappeared with their other family dog, Starlight, when Mandy Iworrigan and her family were visiting Savoonga. About a month after Nanuq disappeared, people in the town of Wales began posting pictures online of what they described as a lost dog. Nanuq was returned to Gambell on a regional air carrier last week, except for a swollen leg with large bite marks from an unidentified animal, he was in pretty good health.