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... I wouldn't fancy me ... I have a beard.
In a study aimed at comparing more than 300 facial photographs of family members and controls, the judges correctly matched wives to their mother-in-law at a significantly higher rate than expected by chance. Furthermore, a higher degree of similarity was ascribed between the husbands’ mother and the husbands’ wife than between the husbands and their wives.
Stephen Gould mentioned how Darwin was considering a genetic theory called gemmules. It was supposed that these gemmules were exchanged between cells to carry the information of inheritance. Darwin mused that maybe husbands and wives ended up exchanging gemmules and that is why they looked a bit like each other. Then Gould muses that Darwin never explained why dogs look like their owners.