简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Year-round r一区esidents such as bears and seals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, from hu丝袜mpback whales 日本二区to over 三区140 million seabirds--almost half the birds in the Northern Hemisphere.详情