简介:In the ice-gripped environment of Alaska's Admiralty Island, summer offe好男rs the briefest of respites. Year-round resi人好dents such as bears and seals turn to the salmon-filled waterways for sustenance. Meanwhile, mig在线观看rants descend in droves, from humpback whales to over 140 million seabirds--almost h资源alf the bi免费rds in the Northern Hemisphere.详情