Dr. David Meltzer, a Professor of Prehistory at Southern Methodist University, shares his expertise on Ice Age North America. He vividly describes how early hunter-gatherers navigated a world inhabited by woolly mammoths and saber-toothed tigers. The discussion highlights the significant role of ancient DNA in understanding human migration and extinction events. Meltzer also dives into the survival strategies of these early humans, their adaptation to diverse landscapes, and the controversial links between hunting practices and megafauna extinction.