February 28, 1997, Hour Two:First Humans in the Americas

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First Humans in the Americas
A 12,500 year old archaeological site in southern Chile is causing scientists to scratch their heads and re-think the timeline for new world human migration. For the past 60 years, the prevailing theory has been that the first Americans walked across a land bridge from Siberia to Alaska about 12,000 years ago, then gradually spread throughout North and South America. In this hour, we'll discuss the site in Chile, and the hows and whens of the earliest human inhabitants of the new world. Plus, a surprising archaeological find in Siberia.

Guests:
Michael Waters
Professor of Anthropology and Geology
Texas A & M University
College Station, Texas

Thomas Dillehay
Professor of Anthropology
University of Kentucky
Lexington, Kentucky

Dena Dincauze
Professor of Anthropology
University of Massachusetts
Amherst, Massachusetts

Roger Powers
Professor of Anthropology
University of Alaska
Fairbanks, Alaska

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