The Glow Below

The episode begins with a call to oceanographer Edie Widder about a fish with a unique immune system, which leads to a discussion about the deep sea and bioluminescence. Edie Widder is an expert in deep sea creatures and their ability to produce light. The light in the deep sea behaves differently than it does on the surface, and creatures use it for various purposes such as hunting and hiding. The episode explores how creatures produce and use light, and Edie shares her experiences studying these creatures. Edie's work has led to some remarkable discoveries, including footage of a never-before-seen Giant Squid. A new documentary called "A Life Illuminated" is being released, which features Edie's work and some of the best deep sea bioluminescence footage ever recorded. Edie has also written a memoir called "Below the Edge of Darkness" about her experiences exploring the deep sea. The episode is part of the Radiolab podcast, which is supported by listeners and foundations such as the Simons Foundation and the John Templeton Foundation. The podcast also has a newsletter that includes short essays, recommendations, and details about other ways to interact with the show. The episode and the podcast as a whole aim to explore and share interesting stories and ideas with listeners, and encourage them to engage with the show through social media and email.