1. EachPod

Toxic? These Animals Don't Care

Author
NPR ([email protected])
Published
Tue 19 Aug 2025
Episode Link
https://www.npr.org/2025/08/19/nx-s1-5500216/cardiotonic-steroid-toxic-poison-heart-attack

Imagine, you’re a toxic toad hanging around South America. No other animals are gonna mess with you, right? After all, you’re ~toxic~! So if anyone tries to eat you, they’ll be exposed to something called a cardiotonic steroid — and may die of a heart attack. Well, unfortunately, for you, some animals have developed adaptations to these toxic steroids. Evolutionary biologist Shabnam Mohammadi has spent her career studying how these adaptations work — and says even humans have used these toxins to their advantage since ancient Egypt. So today on Short Wave, we get a little… toxic (cue Brittney Spears). Host Regina G. Barber talks to Shabnam about how some predators can get away with eating toxic prey. 


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