简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the briefest of respites. Year-round residents such asbvbv bears and seals turn to the salmon-filled waterways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to ove少归r 140 million seabirds--almost half the birds in the North荷兰ern Hemisphere.详情