In Episode 10, and Part I of a II Part series on male sexual orientation, we are joined by Scott Semenyna from the Vasey Lab at the University of Lethbridge. We discuss mate competition in cultures that include third gender individuals and what the consequences are for sexual interactions in these populations. How do genders differ in their competition for sexual partners? How does culture impact the expression of sexuality? How do female sexual partners respond to infidelity from their male partner with third gender individuals? All this and more in Mate Competition in Third Gender Cultures with Scott Semenyna.