No Heart?  NO BUTTHOLE?!  BIG PROBLEMS! Hey weirdos, today we're going back to Biology 101 to be reminded of all the things we immediately forgot in high school and learning SO much more.  We are joined by our very first guest of the season RACHEL FULLER and each of us are asking a biology question we just HAD to have an answer to. We ask pretty basic questions like "Why do we hate the sound of nails on a chalkboard?" "Do jellyfish have a brain?" and "Why do we have a dominant hand?" But the answers are SO much more complex and fascinating than you could ever imagine. From the complex inner workings of our ears to the collaboration of the hemispheres of our brains to some of the strangest (and least trustworthy) creatures in the sea- this episode has something for everyone.