Fungi go under the microscope this week as we explore how they barter minerals and carry chemical messages in return for sugars from plants; we also hear from someone who nearly died after consuming a deadly fungus, find out why fungi make the toxins they do, and hear how these organisms might hold the key to the next generation of packaging and building materials - and even surfboards! Plus, news of a light-powered retinal implant to restore sight, whether alcohol is dangerous in pregnancy, and why aspirin prevents cancers...