简介:In the ice-gripped environ人体ment of Alaska's Admiralty Island, s妺妺窝ummer offers the briefest of respites. Year-round residents such as bears and seals turn to the salm人体on-filled wa看人terways for sustenance. Meanwhile, migrants descend in droves, from humpback whales to over 140 million seabirds--almost half the birds in the Northern Hemisphere.详情