<p>We are creatures of the epigean world: the world of light on Earth’s surface. But there is another world – a world beneath the surface. In this episode of Stuff to Blow Your Mind, Robert and Joe venture into the world of cave biology or biospeleology. (part 3 of 4)</p><p>See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.</p>

The Artifact: Ornithopters of Dune

Deep in the back of your mind, you’ve always had the feeling that there’s something strange about reality. There is. Join Robert Lamb and Joe McCormick as they examine neurological quandaries, cosmic mysteries, evolutionary marvels and our transhuman future.