Investigating further, Gowaty soon began to notice problems with Bateman’s study. In a subsequent paper, published in 2012 in Proceedings of the National Academy of Sciences, Gowaty and researchers Yong-Kyu Kim and Wyatt Anderson at the University of Georgia, wrote, “Bateman’s method overestimated subjects with zero mates, underestimated subjects with one or more mates, and produced systematically biased estimates of offspring number by sex.” They claim that Bateman counted mothers as parents less often than fathers, which is a biological impossibility, since it takes two to make a baby.

