简介:In the ice-gripped environment of Alask免费版a's Admi2019ralty Island, summer offers the briefest of respites. Year-round residents such as bears and seals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to 最近over 中文140 million字幕 seabirds--almost half the birds in the Northern Hemisphere.详情