简介:In the ice-gripped environment of Alaska's Adm在线观看iralty Island, summer offers the briefest of respites. Year-round residents such as bears and seals turn to the salmon-filled免费 waterways for sustenance. Meanwhile, migrants descend in droves, fro高清m humpback whales完整 to over 140 million seabirds--almost half the birds电影 in the Northern Hemisphere.详情