简介:In the ice-gripped enviro江湖nment of Alaska's Admiralty Island, summer offers the briefest of respites. Year-round residents such as bears and seals turn to t不良he salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves,之不 from humpback whales to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情