Amazing Mushrooms! How did Fungi transform the planet millions or years ago? And how are they transforming it again right now? As well as the fascinating properties of Fungi, we look at their symbiotic relationship with plants and trees, or wood - that's right, it wasn't a typo in the title! We end up discussing if ingesting magic mushrooms is what made humans the way they are, and Pip tracks down other animals that seek out natural psychedelic experiences.