Why Monogamy is Natural by John Witte (Emory Professor) Posted on October 9, 2012 by Donna Troka PhD http://www.washingtonpost.com/blogs/guest-voices/post/why-monogamy-is-natural/2012/10/02/08080120-0cc0-11e2-bd1a-b868e65d57eb_blog.html
