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-fille进出d waterways for sust黑人enance. Meanwhile, migrants descend in droves, from humpback whales猛烈 抽搐to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情