Have you ever felt like your thoughts were not your own, that there was some unseen force guiding your actions from deep inside your brain? One possibility is that you are absolutely crazy and should seek professional help immediately. Another is that you may be under the influence of a mind controlling parasite! I chat with Kathleen McAuliffe, author the the book 'This is your Brain on Parasites', and she walks me through some of the most nefarious puppeteers in the Animal Kingdom. We talk about a few examples such as wasp that turns cockroaches into obedient servants, and a protozoan that make mice sexually attracted to cats, plus I make the compelling argument that my two dogs are in fact mind controlling parasites!