The Chemical Language of Black Widows: Pheromones and Deception in Spider Silk

The Western Black Widow (Latrodectus hesperus) is a master of invisible chemistry. 2026 Science Podcast of the Year winner Dr. Jeffrey Zurek joins Dr. Andy Fisher (Greifswald University) to untangle the chemical love letters hidden in spider silk.

We explore how "virtually blind" predators use smell & electrostatic charges to communicate. Discover the "stinky cheese" pheromone, why males destroy female webs during courtship, and the scandalous truth about "cheating" widows who lie about their age and fitness to attract a mate.

Topics Covered

Podcast of the Year: Celebrating 2026 American Writing Awards win.Chemical Languages: How smell and taste dominate the "dark taxa."Explore the sausage-making of science, & how chemical ecology replaces toxic pesticidesThe "Gym Sock" Signal: Identifying butyric acid in widow websHonest vs. Deceptive Signals: How starved spiders "cheat" the systemNew Anatomy: Hot-off-the-press research on how spiders smell with their legs.Chapters

(00:00) 2026 Podcast of the Year!

(01:05) Warning: Arachnophobia

(03:30) Guest: Dr. Andy Fisher

(05:55) How Spiders "See" with 8 Eyes

(08:50) Electrostatic Communication

(12:35) Pest Management vs. Pesticides

(14:35) The Western Black Widow

(17:00) Field Work: How Not to Get Bitten