What Twins Separated At Birth Teach Us About Nature vs Nurture - Nancy Segal - #667

Nancy Segal is a professor at California State University, an author and one of the most prominent twin-study researchers on the planet.

What makes you the person you are? Is it your genetics or your environment? When twins are either accidentally or purposefully separated at birth, it presents a fascinating view into this debate, shedding light on the influence of both traits and environments on the outcomes we get in life.

Expect to learn the craziest similarities between twins who have been raised apart, how it's possible to have a pair of twins born at the same time to two different fathers, what happens when twins meet for the first time, what you can learn from triplets that you can’t learn from twins, just how big of an impact genes and environment are on the traits we see in people, how important of a role chance plays in our lives and much more...

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Timestamps:

(00:00) How Evolutionary Psychology Explains Twins (04:51) Unique Connections Between Identical Twins (08:22) The Rare Occurrence of ‘Half Twins’ (16:22) How Do Twins Know They’re Twins? (21:02) When Separated Twins Are Both Gay (25:00) Craziest Similarities Between Separated Twins (35:19) Do Twins Also Share Illnesses? (43:25) The Ethics of Separating Twins at Birth (48:31) Why Do So Many People Have an Issue with Behavioural Genetics? (52:57) How Much Can Rearing Change a Child? (1:04:14) The Family Dynamic of Bi-Racial Twins (1:07:03) Common Criticisms of Twin Studies (1:11:34) ‘Tell Me Who I Am’ on Netflix (1:14:10) Where to Find Nancy

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