简介:In the ice-gripped environ实录ment of Alaska's Admiralty Island, summer offers the briefest of respites. Ye免费ar-round residents such as bea鉴证rs and s在线观看eals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants des国语cend in droves, from humpback whales to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情