Inside our genomes, we carry information about our recent ancestors as well as ancient human history. This hour, we talk with science writer Carl Zimmer about his book, She Has Her Mother's Laugh: The Powers, Perversions, and Potential of Heredity. We ask him what our DNA can—and can’t—tell us about where we’re from and who we are.

GUEST:

• Carl Zimmer - New York Times columnist and author of 13 books about science, including She Has Her Mother’s Laugh: The Powers, Perversions, and Potential of Heredity

Chion Wolf contributed to this show, which originally aired on June 8, 2018.

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