근친혼으로 유전병이 많은 아미시 ; 합스부르크가의 상징인 주걱턱과 비슷한 사례; 유전자는 인간이든, 자연이든, 다양성을 선호하며 미남미녀 역시 유전자풀의 다양성에서 발생한다

 

A few years ago, I saw a mugshot of a rowdy group of Amish teenagers, who were arrested for getting drunk on moonshine liquor and taking a horse buggy for a joyride. The four young chaps looked like the generic medieval villagers from an animated Shrek movie.

The Amish are a group of people who live pretty much like they’re in the mid-1850s, even in the 2020s. Their lifestyle is extreme especially by our modern standards. As a result, this fast growing American religious community does not have a lot of “fresh blood” coming in… Amish marry Amish. And most of the available spouses will be first, second and third cousins. They do try and avoid first cousin marriage, but second and third cousin marriage is rampant. As a result, most Amish are severely inbred.

As a result of all this inbreeding, the Amish have a higher than average number of birth defects and genetic disorders. Certain physical traits become overly pronounced over time, too. Jaws, for instance, become a little larger with each new generation. Why do you think all adult Amish men have those moustache-less dwarven beards?