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530: A Living Highlighter

Jul 25, 2026 · 1h 8m

Summary

Hosts Alicia and Christopher White interview marine biologist Steve Haddock about his book, The Radiant Sea, which explores deep-sea organisms' optical adaptations like bioluminescence and transparency. Haddock discusses the technological advancements in underwater imaging and genomics that enable these studies, highlighting how living specimens reveal behaviors lost in dead samples. The conversation covers the evolutionary costs of these traits, their biomedical applications like GFP, and the mysterious functions of phenomena such as disco clam displays.

Topics discussed

Introduction: Jellyfish, eel pout, and disco clams Lightning round: Disco clams, Star Wars droids, and tips The Radiant Sea book: Real photos vs. CGI and optical properties Bioluminescence evolution: Why jellyfish glow and eyes come first Deep sea tech: ROVs, low-light cameras, and stimulating flashes Deep sea weirdness: Transparency, counter-illumination, and ink Bioluminescent escape tactics and GFP in medical research Fluorescence, structural color, and the mystery of disco clams Costs of transparency and bioluminescence in deep sea creatures Blacker than black, anglerfish stealth, and blackwater diving Jellyfish blooms, navigation, and biomimetic robotics Writing The Radiant Sea and Practical Computing for Biologists Surprising discoveries: Octopus guards and giant jellyfish
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