简介:In the ice-gripped environment of Alaska's Admiralty 国语Island, summer offers the briefest of respites. Year-round residents such as bears and seals5集 turn to the salmon-filled waterways for sustenance. Meanwhil思敏e, migrants descend in droves, from humpback whales to over 140 mi免费llion seabirds--almost half the birds in the Northern Hemispher观看e.详情