简介:In the ice-gripped environment of 欧美Alaska's Admiralty Island, summer offers the briefest of respites. Year-round residents such as bears and seals turn to th一级e salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabi三级rds--almost half the birds欧美 in the Northern 在线观看Hemisphere.详情