简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offer久久s the briefest of respites. Year-国产round residents such as bears and seals turn to 久久the salmon-filled waterways for sustenance.精品 Meanwhile, migrants descend in droves, from humpback whales to 亚洲over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情