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The same is true of spouses, and in fact, the healthiest couples (or at least those with the most children) seem to be third or fourth cousins: "Third Cousins
by throwaway832852 9y ago
The same is true of spouses, and in fact, the healthiest couples (or at least those with the most children) seem to be third or fourth cousins:
"Third Cousins Have Greatest Number Of Offspring, Data From Iceland Shows"
https://www.sciencedaily.com/releases/2008/02/080207140855.htm https://www.sciencedaily.com/releases/2008/02/080207140855.h...
Not exactly what you'd expect given how often we see "hybrid vigor" touted as a purported benefit of interracial marriage.
- deleted 9y ago[deleted]
- jinfiesto 9y agoYeah, I think "hybrid vigor" is probably nonsense. However, interracial couples tend to be left-leaning, which also implies fewer children, so I don't think it makes sense to infer causality (or lack thereof) the way you are. Too many competing factors.
- throwaway832852 9y agoAt a minimum, the study suggests that the fitness golden mean between inbreeding depression and outbreeding depression is actually much closer to the intraracial side of the spectrum than the interracial.