Researchers find correlation between face shape and procreation rates and rank in male soldiers
(Phys.org) —Researchers in Finland, using photographs of soldiers marked with associated personal data have found that facial width to height ratio (fWHR) played a role in how many children they had and their rank. In their paper published in the journal Biology Letters, researchers John Loehr and Robert O'Hara describe how they measured the faces of men found in a war tribute book and compared them with personal data. Their study was part of an effort to see if they could find any correlations between wide-faced men and survival rates in war (possibly connected to aggressiveness). In so doing, they discovered some clear associations between wide faced-men and the number of children they had. They also found that narrow-faced men tended to rank higher than wide-faced men did.