简介:In the ice-gripped environment o群芳f Alaska's Admiralty Island, summer offers the briefest of respites. Year-round residents such as bears and seals 全文turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, from都市 humpback whales to over 140 million seabirds--almost half the birds in th免费阅读e Northern Hemisphere.详情