Heredity: Why Everything You Think You Know Is About To Change

Our concept of heredity is based on the idea that we inherit certain genes and traits from our parents and ancestors. But as science writer Carl Zimmer points out in his new book, it's not that simple. Zimmer talks about the history of the concept of heredity, and how current cutting edge research could shape its future.

Carl Zimmer, science columnist for The New York Times and author of "She Has Her Mother's Laugh: The Powers, Perversions, and Potential of Heredity." Zimmer will be discussing his book at the Harvard Book Store tonight at 7 p.m. He tweets @carlzimmer.