简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Year-round residents such as bears and seals turn to the salmon-fi移动lled waterways for sustenance. 入口Meanwhile, migrants descend in drov大王es, f申请rom humpback whales to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情