简介:In the ice-gripped environment of Alaska's A午夜dmiralty Island, summer offers the briefest of respites. Year-round residents such as bears and seals turn to the salmon-fill二区ed wat三区erways for sustenance. Meanw在线观看hile, migrants descend in droves, from humpback whales to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情