简介:In the ice-gripped在线观看 environment of Alaska'视频s Admiralty Island, summer offers the briefest of respites. Year-round residents such as bears an中文d seals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds--al高清mos一二三四t half the birds in the Northern Hemisphere.详情