简介:In the ice-gripped environme视频nt of Alaska's Admiralty Island, summer offers the briefest of respites. Year-round residents such as 任你弄bears and seals turn to the salmon-fill在线观看ed waterways for sustenan精品ce. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情