简介:In the ice-gripped environment of 又硬Alaska's Admiralty Island, summer offers the b又粗riefest of respites. Year-round residents such as bears and seals turn to the salmon-filled waterways for sustenance. 又长Meanwh起来ile, migrants descend in droves, from humpback whales to ov又大er 140 million seabirds--almost half the birds in the Northern Hemisphere.详情