Polynesian DNA suggests epic voyage to South America 800 years ago
There is one thing I don't understand for these epic journeys, whether it's trans Pacific/Atlantic, the Bering straight etc, what was the motivation to risk your life? Unless there was some kind of local conflict why would you risk the move given there was relatively unlimited resources at source destinations at the time comparef to population. What makes the first person decide I'm going to sail past the horizon and everything we know and risk my life, it boggles my mind.