简介:In the ice-gripped environme我是nt of Alaska's Admiralty Island, summer offer看守s the briefest of respites. Year-round residents such as bears and seals turn to the salmon-filled waterways f惩罚or sustenance. Meanwhile, migrants descend in droves, from h专用umpback whales to over 140 million seabirds--almost half the birds in the 甜蜜Northern Hemisphere.详情