Do you need a work permit? purchase stypln Pulitzer Prize-winner Jared Diamond has spent nearly 50 years studying cultures in Papua New Guinea. Now, he collects his decades of fieldwork to argue that traditional societies still have much to teach us on a wide spectrum of topics â from ways to eat and stay fit to methods of raising children and organizing communities. 必須 2000文字以内 [bbs:youtube:(Youtubeの動画ID)]と書くとYoutubeの動画が貼れます。(例:[bbs:youtube:OQThUAQ0UN0])