简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Year-round又粗 residents such as bears and seals 视频turn to the salmon又黄-filled waterways for sustenance. Meanwhile, migr又爽ants descend in drove又长s, from humpback whales to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情