简介:In the ice-gripped environme暖暖nt of Alaska's Admiralty Island, summer offers the briefest of respites. Year-round re在线观看sidents 高清such as bears and seals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情