简介:In 在线播放the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Year-round resid国产ents such as bear午夜s and seals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million成人 seabirds精品--almost half the birds in the Northern Hemisphere.详情