The Chemical Language of Black Widows: Pheromones and Deception in Spider Silk
MAR 16, 202650 MIN
The Chemical Language of Black Widows: Pheromones and Deception in Spider Silk
MAR 16, 202650 MIN
Description
<p>The <strong>Western Black Widow</strong> (<em>Latrodectus hesperus</em>) is a master of invisible chemistry. 2026 Science Podcast of the Year winner <strong>Dr. Jeffrey Zurek</strong> joins <strong>Dr. Andy Fisher</strong> (Greifswald University) to untangle the chemical love letters hidden in spider silk.</p><p>We explore how "virtually blind" predators use smell & <strong>electrostatic charges</strong> 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.</p><p><strong>Topics Covered</strong></p><ul><li><strong>Podcast of the Year:</strong> Celebrating 2026 American Writing Awards win.</li><li><strong>Chemical Languages:</strong> How smell and taste dominate the "dark taxa."</li><li><strong>Explore the sausage-making</strong> of science, & how chemical ecology replaces toxic pesticides</li><li><strong>The "Gym Sock" Signal:</strong> Identifying <strong>butyric acid</strong> in widow webs</li><li><strong>Honest vs. Deceptive Signals:</strong> How starved spiders "cheat" the system</li><li><strong>New Anatomy:</strong> Hot-off-the-press research on how spiders smell with their legs.</li></ul><p><strong>Chapters</strong></p><p><strong>(00:00)</strong> 2026 Podcast of the Year!</p><p><strong>(01:05)</strong> Warning: Arachnophobia</p><p><strong>(03:30)</strong> Guest: Dr. Andy Fisher</p><p><strong>(05:55)</strong> How Spiders "See" with 8 Eyes</p><p><strong>(08:50)</strong> Electrostatic Communication</p><p><strong>(12:35)</strong> Pest Management vs. Pesticides</p><p><strong>(14:35)</strong> The Western Black Widow</p><p><strong>(17:00)</strong> Field Work: How Not to Get Bitten</p><p><strong>(22:30)</strong> Web Chemistry: Stinky Pheromones</p><p><strong>(25:45)</strong> Why Males Destroy the Web</p><p><strong>(29:50)</strong> The Metabolic Cost of Love</p><p><strong>(33:15)</strong> Deception: The Cheating Widow</p><p><strong>(38:10)</strong> Mass Spec: Smashing Chemical Legos</p><p><strong>(41:40)</strong> Seasonality of Sex Signals</p><p><strong>(44:55)</strong> Sub-Social Web Sharing</p><p><strong>(48:20)</strong> Black Widow Science Joke</p><p><strong>Links</strong></p><p><a target="_blank" rel="noopener" class="ng-star-inserted" href="https://animal-metabolomics.com/">Animal Metabolomics & Ecology Lab</a></p><p><strong>Papers: </strong><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.cell.com/iscience/fulltext/S2589-0042(24)01947-3">Starving Female Spiders</a> <a target="_blank" rel="noopener" class="ng-star-inserted" href="https://www.pnas.org/doi/10.1073/pnas.2415468121">Pheromone Abundance Study</a></p><p><strong>Web:</strong> <a target="_blank" rel="noopener noreferrer nofollow" href="http://WhimsicalWavelengths.com">WhimsicalWavelengths.com</a></p><p><strong>Support:</strong> <a target="_blank" rel="noopener nofollow" class="ng-star-inserted" href="https://www.patreon.com/WhimsicalWavelengths">Pateron</a></p><p><strong>Socials:</strong> <a target="_blank" rel="noopener nofollow" class="ng-star-inserted" href="https://bsky.app/profile/whimsicallambda.bsky.social">Bluesky</a><a target="_blank" rel="noopener nofollow" href="https://bsky.app/profile/whimsicallambda.bsky.social"> </a>| <a target="_blank" rel="noopener nofollow" class="ng-star-inserted" href="https://www.instagram.com/whimsical.wavelengths/">Instagram</a><a target="_blank" rel="noopener nofollow" href="https://www.instagram.com/whimsical.wavelengths/"> </a>| <a target="_blank" rel="noopener nofollow" class="ng-star-inserted" href="https://www.facebook.com/WhimsicalWavelengths">Facebook</a></p><p><strong>Whimsical Wavelengths:</strong> Deep-dive conversations where a working scientist unpacks how we know what we know, one paper, one idea, or whimsical detour at a time. Hosted by <strong>Dr. Jeffrey Zurek (P.Geo)</strong>.</p>