The headline of this Feb 12, 2015 blog post exaggerates how generalizable these results are likely to be. By the way, do we have a direct link to the published version of the study readily available? I just tried some of the usual online steps for looking up the author's most recent publication on the issue, but what I found was a repost of this Scientific American blog post (which is already a few months old). I study this research with a journal club populated by leading behavior genetics researchers, and any preliminary findings of this kind need a lot more replication before being publishable in an astute journal.