简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Year-round residents such as bea巨爆rs and seals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, fromboobs humpback whales to over 140 million seabirds--almost half the b性大irds in the Northern Hemisphere.详情