REBROADCAST: This episode looks at how one of the worst ideas in science got a big push from a bad study… and intellectuals of the day lapped it up. We speak to science writer Carl Zimmer and Prof. J. David Smith, whose research helped get to the bottom of this messed-up story.

Coronavirus: How Scary Are the Variants?

Venomous snakes entranced medieval Europe. And although bites were rare, this didn’t stop 14th century doctors from using everything but the kitchen sink to make snake bite treatments. We’re talking weasels, birds — even the pee of a young man. So was it all for snakes and giggles? Or is there something we’re missing in our treatments today? We speak to medieval animal expert Dr. Kathleen Walker-Me...