简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Year-ro文字幕und residents such as bears and seals turn to the salmon-fi中文lled wat文字幕erways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds--almost h字幕alf the birds in t乱码he Northern Hemisphere.详情