throwaway832852·9 ปีที่แล้ว·discussAt 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.
throwaway832852·9 ปีที่แล้ว·discussThe 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.h...Not exactly what you'd expect given how often we see "hybrid vigor" touted as a purported benefit of interracial marriage.