简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Year-round residents such as bears and seals turn to the salm成人on-filled waterways for sustenance. Meanwhi一区le, migrants descend in droves, from hump二区back whales to over 140 million seabirds--almost half the bird三区s in the Northe亚洲rn Hemisphere.详情