简介:In the ice-gripped environment of Alaska's Admiralty Island, 高清summer offers the briefest of respites. Y在线观看ear-round residents such as bears and seals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 mi哔哩llion seabirds--almos哔哩t half the birds in the Norther免费n Hemisphere.详情