简介:In the ice-gripped environment of Alaska's Admiralty Island, summer off在线观看ers the briefest of respites. Year-round residents such as bears and seals turn to the salmon-filled waterways for sustenance资源. Meanwhile, migrants descend in droves, f好男rom humpback whales to over 140 million seabirds--almost half the birds in the Northe免费rn Hemisphere.人好详情