Nancy L. Segal

Nancy L. Segal, Ph.D. (CA), is a professor in the Department of Psychology at California State University, Fullerton, and the director of the Twin Studies Center, which she founded in 1991. She is the author of six books on twins including (most recent ones first): Accidental Brothers: The Story of Twins Exchanged at Birth and the Power of Nature and Nurture; Twin Mythconceptions: False Beliefs, Fables, and Facts About Twins: Born Together-Reared Apart: The Landmark Minnesota Twin Study; Indivisible by Two: Lives of Extraordinary Twins and Entwined Lives: Twins and What They Tell Us about Human Behavior, and the senior editor of Uniting Psychology and Biology: Integrative Perspectives on Human Development. She is also an associate editor of Twin Research and Human Genetics, the official journal of the International Society for Twin Studies. Dr. Segal's media appearances include Today, Good Morning America, 20/20, the Oprah Winfrey Show, the Martha Stewart Show, Discovery Health, and the Diane Rehm Show on NPR.

PLEASE SEE MY LATEST BOOK--DELIBERATELY DIVIDED: INSIDE THE CONTROVERSIAL STUDY OF TWINS AND TRIPLETS ADOPTED APART (AVAI;ABLE FOR PRE-ORDERS NOW--release date October 15, 2021)

Visit her website at drnancysegaltwins.org

Author photo by Michael Keel