Fairbanks, AK – Today many of us know about the Bering Land Bridge, the expanse of land that connected Asia with North America during the ice ages. But what many don't know is that one scientist above all others is credited with puzzling out the mystery of how North America originally was settled in prehistory. Now Fairbanks writer Dan O'Neill has a new book that corrects that lapse. Robert Hannon talked with Dan about The Last Giant of Beringia. Here's Dan reading from the book.