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 seals turn to the salmon-filled waterwa广告ys for sustenance. 永久Meanwhile, m追剧igrants descend in droves, from humpback whales to over 140 免费影视million seabi高清rds--almost half the birds in the Northern Hemisphere.详情