简介:In the ice-gripped environment of Alaska's Admiralty Island, summ国语er offers the briefest of 思敏respites. Year-round residents such as bears and seals turn to the salmon-filled waterways 免费for sustenance. Meanwhile, m5集igrants descend in droves, from humpback whales to over 140 million seabirds--almost half the birds in the Northern H观看emisphere.详情