For thousands of years, North America was a frozen frontier buried beneath miles-deep ice... How did the first people reach the Americas live here? What was it like to share the land with mammoths, mastodons, and sabre-toothed predators? And what triggered the dramatic warming that brought this icy epoch to a close?

Our guest today is Dr. David Meltzer, archaeologist and Professor at Southern Methodist University in Texas. He's the author of numerous works including First Peoples in a New World: Populating Ice Age America.

Edited by Aiden Lonergan. Produced by Tomos Delargy. Senior Producer is Freddy Chick.

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