Discover the science behind Alaska's dramatic landcapes with Alaska Park Science. Published twice a year by Alaska Geographic for the National Park Sevice, this award-winning full-color journal chronicles the latest scientific research in Alaska's national parks. In this issue, you'll find reports on the mammal-eating killer whales of Glacier Bay, archeological investigations in Anaktuvuk Pass, trumpeter swan abundance and distribution, and gold hunting in Kantishna.