In Entwined Lives, preeminent twin researcher Dr. Nancy L. Segal reveals how twins hold the keys to understanding our physical and intellectual capabilities, personality traits, social attitudes, and more. Combining the latest research with illuminating case histories — including identical twins separated at birth and reunited thirty-nine years later — she explores the roles played by genes and environment, and shows how nature's "living laboratories" provide vital clues to our behavioral riddles. In this unique book, you'll read about: <BR>-- The special relationship twins share<BR>-- The unusual language patterns of twins<BR>-- What twins tell us about cooperation and competition<BR>-- What losing a twin reveals about grieving<BR>-- Pseudo twins — unrelated siblings who are reared together<BR>-- The role of fertility treatments in twin and "twinlike" conceptions<BR>-- How conjoined twins view their coexistence<BR>-- Twins and clones<BR>-- Twins in the courtroom<BR>-- Twinning in the nonhuman animal kingdom<BR>-- Facts and fallacies of being a twin<P>From athletic prowess to marital stability to why we gain and lose weight, Entwined Lives sheds new light on the nature/nurture debate and will have a profound effect on the way we think about ourselves and each other.

Dr. Segal brings together cutting-edge information and illustrative case histories of twins and their families to explore ways in which twins enhance our knowledge of human behavior and physical development, while shedding new light on evolutionary psychology. Foreword by Thomas J. Bouchard, Jr., Ph.D.