Thank you for the link. This is very interesting. My only complaint is that the method of study seems like it would not be great at differentiating paternity b

Thank you for the link. This is very interesting. My only complaint is that the method of study seems like it would not be great at differentiating paternity between relatives (i.e., cases where the affair partner is related to the husband, such as his brother or cousin) due to shared Y chromosomal DNA. It does, at least, suggest that rates of cheating with unrelated men were likely low in most cases (outside of poor urban populations as mentioned in this paper: https://www.cell.com/current-biology/fulltext/S0960-9822(19)31305-3 https://www.cell.com/current-biology/fulltext/S0960-9822(19)... ).