简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respite在线s. 官网Year-round residents such as bears and seals turn to the salmon-filled waterways for sustenance. Meanwhil资源e, migrants descend in droves, from humpback whales to over 140 million seabirds男人--almost half the birds in the Northern Hemisphere.详情