The captivating story of how geologist Dave Hopkins proved the existence of the vanished land bridge that once connected Siberia to the New World during the Ice Ages.
Reveals the fascinating science detective story that confirmed the existence of the land bridge that served as the intercontinental migration route for such massive Ice Age beasts as woolly mammoths, steppe bison, giant stag moose, dire wolves, short-faced bears, and sabre-toothed cats - and for the first humans to enter the New World from Asia.