简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Year-rou三区nd residents such as bears and seals turn to 二区the salmon-filled wat久久erways for sustenance. Meanwhile, migrants descend in droves, from humpback whales t天堂o over 140 mil一区lion seabirds--almost half the birds in the Northern Hemisphere.详情