简介:In the ice-gripped environment of Alaska's Adm国产iralty Island, summer offers the briefest of respites. Year-又大round residents such as bears and seals turn to the salmon-filled waterways for视频 sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds又粗--almost half the b又黄irds in the Northern Hemisphere.详情