简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the b大象riefest of respites. Year-round residents such as bears and seals turn 视频to the salmon-f观看illed waterways for sustenance. Meanwhile, migrants descend in d在线roves, from humpback whales to over 140 million seabirds--almost hal免费f the birds in the Northern Hemisphere.详情