简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Ye奶涨ar-round reside帮我nts such as bears and seals turn to the salmon-filled wate爸我rways fo帮帮r sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds--almost half the birds in th你来e Northern Hemisphere.详情