Ancient DNA sheds light on the past

Molecular biologist Beth Shapiro uses ancient DNA samples to travel through time, looking for clues to what caused the mass extinctions of species like mammoths more than 10,000 years ago. Her research could provide lead to strategies to preserve and protect species today.

Guests

• Beth Shapiro: Molecular biologist and assistant professor of biology at Penn State University. She was the recipient of the MacArthur "Genius" grant and is currently a National Geographic emerging explorer.

Resources

• About Beth Shapiro
• Shapiro Lab