简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respi官网tes. Year-round residents such as bears and seals turn to the salmon-filled waterw人网ays for sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds--almost hal好男f the bird在线观看s in the Northern Hemisphere.详情