简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites免费. Year-round residents such as bears and s出水eals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, 日出from hump小嫩批back whales to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情