Some 30,000 years ago, humans sailed 140 miles from Taiwan to Japan’s southern Yonaguni Island, navigating the Pacific Ocean’s powerful Kuroshio currents. But how exactly did they manage to complete ...

Normally when making a long voyage in a canoe, an adventurer would paddle the vessel as far as possible and then “portage”, or carry, the canoe over the short sections of land separating the bodies of ...