David Scheel is an ecologist and author of the book, Many Things Under a Rock: The Mysteries of Octopuses. In this episode, we talk about octopus tool use, octopus dreams, and whether octopus arms have minds of their own. Produced by Ryan Pemberton Editing help from Cheyne Anderson and Alex...

Fiona Cross is an arachnologist whose research focuses on spider cognition. In this episode, we talk about how Fiona went from being terrified of spiders to studying them, the incredible strategies that the portia spider uses to hunt other spiders, and how Fiona and her colleagues tested whether...