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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