简介:In the ice-gripped environment of Alaska's Admiralty Island,在线 summer offers the briefest of respites. Year-round residents such as bea最新版rs and seals turn to the salmon-filled w天堂aterways fo在线r sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情