简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offers the brie中文fest of respites. Year-round residents such as bears and seals 日本turn to the salmon-filled waterways for sustenance. Meanw日韩hile, migrants descend in droves, from humpback whales to over 140 million seab无区irds-字幕-almost half the birds in the Northern Hemisphere.详情