简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest免费 of respites. Year-round residents such as bears and seals turn to the之门 salmon-filled waterways for sus观看tenance. Meanwhile, migran重生ts descend in droves, from humpback whales to over 140 million seabirds--almost half the bird电视剧s in the Northern Hemisphere.详情