The Michael Shermer Show cover image

The Michael Shermer Show

Based on DNA Testing, Only One Twin Was Granted U.S. Citizenship. Why?

Sep 1, 2023
Nancy Segal, author of Twin Children of the Holocaust and Gay Fathers, Twin Sons, discusses the fascinating world of twins, including accidental and intentional separations, reunions, and twins in different family arrangements. They delve into twins' history, the gay fathers and twin sons case, immigration and naturalization issues, eugenics, and the relative role of nature and nurture in shaping lives.
01:42:12

Episode guests

Podcast summary created with Snipd AI

Quick takeaways

  • Genetic influence on traits is supported by studies on identical twins raised apart.
  • The legal complexities surrounding immigration were highlighted in a case involving gay fathers and their twin sons.

Deep dives

Importance of Twins and Universal Fascination

Twins hold a universal fascination because they challenge our belief in individual uniqueness. We find ourselves drawn to their lives and intrigued by their similarities. Identical twins have a very close social relationship and effortlessly exhibit non-judgmental support and acceptance. Studies comparing identical and fraternal twins show that identical twins are more alike, indicating a genetic influence on certain traits. This genetic influence is further supported by studies on identical twins raised apart, which demonstrate similarities even when environmental factors are different.

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