简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Y免费ear-round residents such as 观看bears and seals 妈妈turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, 高清from humpback whales to over 140 million seabirds--almost hal陪读f the birds in the Northern Hemisphere.详情