Thylacines, passenger pigeons, bucardos, aurochs, woolly mammoths, and saber-toothed cats went extinct hundreds to thousands of years ago. With the advent of cloning and genetic engineering technologies, extinction may no longer be forever - but is that a good thing? Megan and Melissa discuss the opportunities and obstacles that bringing lost species back presents, and accidentally discover weird YouTube videos and conspiracy theories along the way. It's not Jurassic Park, it's Pleistocene Park!