简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Year-round r边摸esidents such as bears and seals turn to the salmon-fi吃奶lled waterways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds--almost边做 half t动态he birds in the Northern Hemisphere.详情