Nancy Segal

Dr Nancy Segal is Professor of Psychology and Director at the Twin Studies Center at California State University in Fullerton, USA. She has authored more than 200 publications and several books on twins. Born Together – Reared Apart: The Landmark Minnesota Twin Study (2012) won the 2013 William James Book Award from the American Psychological Association. She also received the James Shields Award for Lifetime Contributions to Twin Research from the International Society for Twin Studies in 2005.

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First twins born in different countries

The first twins known to have been born in different countries are identical twins Heidi Hilane Gannon and Katherine Joanne Baines (née Roberts) (UK, b. 23 September 1976). Heidi was born at 9:05 a.m. at Welshpool Hospital, Wales, and Jo followed at 10:45 a.m., after their mother was transferred to the Royal Shrewsbury Hospital, England, due to complications.