Justin Marshall is a neuroscientist and ecologist whose work focuses on how animals perceive their environment, particularly through vision. In this episode, we talk about the sudden surge in the mantis shrimp's popularity (in large part due to a discovery Justin made), how what we thought we knew about mantis shrimp colour vision was upended, and the societal value of spending 3+ years staring at a worm. Produced by Ryan Pemberton Editing help from Cheyne Anderson and Alex Tighe Fact checking by Caitlin Cherryh Artwork by Evie Hilliar Michael Webber's website