Merry XXXmas everyone! Our marathon of 'Wild Sex', my new show about the evolutionary biology of sex, continues today. Here are episodes 2 and 3, respectively entitled 'When Sex Gets Stuck' and 'Dildos and Dolphins'. If you want to read the introductory piece about Wild Sex from yesterday, please visit it here.

I should note that episode 3 is our most 'outrageous' episode. We shot it in one take, and I had no idea what was coming out of the bag of tricks. I became a little flustered and made a bit of a blunder (you'll know it when you hear it). My only defense is that I could barely remember my own name at that point, much less all of my biological facts.