简介:In the ice-gripped environment of Al50岁aska's Admiralty Island, summer offer找个s the briefest of respites. Year-round residents such as bears and seals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, from hu妇女mpback whales to over 140 million seabirds--almost half 我想the birds in the Northern Hemisphere.详情