"Twins Study Finds Adult Religiosity Heritable" -- FuturePundit

From FuturePundit: 

University of Minnesota at Minneapolis psychology graduate student Laura Koenig and other U Minn researchers have found in a twins study that religiousness becomes more genetically determined as we age. (same article here) *  *  *  If any of the Minnesota researchers see this then what would be extremely interesting would be to collect fertility data on these men. Are the more religious men reproducing at higher rates than the less religious? Are genes for religiosity being selected for? I'm guessing the answer is Yes!