ANCHORAGE, Alaska — Inupiats in Barrow want the Smithsonian Institution to return dozens of human skeletal remains unearthed in northern Alaska. The American Museum of Natural History refuses to give up the remains of 85 individuals, saying they came from a group of Arctic people who predated the ancestors of the modern-day Inupiat. The Washington D.C.-based institution believes those remains, excavated in the early 20th century, belong to the ancient Birnirk culture, whose descendants apparently left Alaska to resettle in Greenland and Canada around 1,000 A.D. The Smithsonian said the remains, excavated from four sites, are more likely related to...