简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Y视频ear-r欧美ound residents such as bears and seals turn to the salmon-filled waterways for s一区ustenance. Meanwhile, migrants descend in droves, from humpback whales t国产o over 140 milli日产on seabirds--almost half the birds in the Northern Hemisphere.详情