简介:In the i为啥ce-gripped environment of Alaska's炮台 Admiralty Island, summer offers the briefest of respites. Year-round residents such as bea高圆圆rs and seals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情