Big Picture Science – Digging Our Past: Sera Young / Craving Earth

by Gary Niederhoff on February 1, 2015



Sera Young / Craving Earth
click to listen (trt 11:08)

Part 4 of Digging Our Past, featuring Sera Young, research scientist, division of Nutritional Sciences, Cornell University, and author of Craving Earth: Understanding Pica—the Urge to Eat Clay, Starch, Ice, and Chalk.

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