It’s a Halloween episode! “There’s a scary secret lurking in the kitty litter…” We’re making a horror movie about a common cat parasite - that can control minds! Toxoplasma gondii makes mice lose their fear of cats, in a plot to take over the world! Biologist Sebastian Lourido helps us tell the true tale of toxoplasma’s quest for cat domination, and what sci ... Show More
Sep 4
Mailbag: Why Does the Left Brain Control the Right Side of Your Body? Are Dinosaurs Reptiles or Birds?
In this final mailbag episode of Summer 2026, Marshall and Lindsay address two listener questions, and learn about a surprising twist of evolution. Plus, listener reviews and comments! To get an invite to the next Tumble meetup, as well as receive birthday shout outs and ad free ... Show More
18m 12s
Dec 2023
Cat parasite Toxoplasma tricked to grow in a dish
In this episode:00:48 A new way to grow a tricky parasite in the labToxoplasma gondii, the parasite that causes the zoonotic disease toxoplasmosis, has a complex, multi-stage life cycle. Some of these stages will only grow in the intestines of cats, making it difficult to study. ... Show More
25m 48s
Apr 2022
Monsters Inside Me: Sleeper Cells
A creature feeds on the brain tissue of a young boy after he ingests worm eggs, and a killer works its way through the body of a Vietnam veteran, laying waste to his organs and lymph system.For more shocking, true stories about mysterious illnesses caused by parasites, listen to ... Show More
41m 15s
Nov 2024
TALK SCARY TO ME - E147 "Go Get That Ghost!"
It’s an extra spooky episode with ghostly guests! Danielle & Scout will try to figure out if Scout’s dogs are actually seeing a spirit, talk about the origins of America’s Most Wanted, and recount their Halloween night adventures. So stay up to date on the newest ride-share app, ... Show More
1h 3m
