简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers th二区e briefest of respites. Year-round residents such 一区as bears and s蜜桃eals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds成人--almost half the b三区irds in the Northern Hemisphere.详情