简介:In the ice-gripped environment 在线播放of Alaska's Admiralty Island, summer offers the briefest of respites. Year-round residents such as bears an午夜d seals turn to the salmon人无-filled waterways for sustenance. Meanwhile, migrants descend in d国产roves, from humpback whales to over 140 million seabirds--almost half the birds成人 in the Northern Hemisphere.详情