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Zombie roaches and other parasite tales | Ed Yong

Oct 31, 2026 · 15m

Summary

Host Elise Hu introduces a Halloween-themed playlist featuring a 2014 TED Talk by science writer Ed Yong. Yong explores the fascinating world of mind-controlling parasites, detailing how organisms like tapeworms, Gordian worms, and the emerald cockroach wasp hijack their hosts' behaviors to ensure their own survival. He discusses specific examples, such as crickets driven to drown and roaches led like dogs, before raising the unsettling question of whether similar manipulations, potentially involving Toxoplasma gondii, could be influencing human behavior.

Topics discussed

October Halloween theme and episode introduction Preview of Ed Yong's talk on parasites Sponsor segments: Capital One, TikTok, and Apple Card Brine shrimp swarms controlled by tapeworms Gordian worms driving crickets to drown The prevalence and storytelling of parasites Massive parasite biomass in estuaries Emerald cockroach wasp and neural manipulation Human manipulation and the fear of losing free will Toxoplasma gondii and rodent behavior Potential effects of Toxoplasma on humans Conclusion: Parasites as wonderful and charismatic Credits and production team Sponsor segments: Capital One banking and VentureX Preview of TED Radio Hour on animal sanctuaries
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