简介:In the ice-gripped environment of Alaska's Admiralty Island, s国产ummer offers the briefest of respites. Year-round residents such国产 as bears and seals turn to the salmon-filled w国产aterways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds--almost精品 half the 三级birds in the Northern Hemisphere.详情