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 se在线观看als turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, 网站from humpba免费ck whales 深夜to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情