Why Don't Poison Frogs Poison Themselves?

A small change in poison frogs' DNA keeps them from being harmed by their own poison.
Sofie Bates, Contributor

(Inside Science) -- Some frogs are extremely toxic. So how do they keep from poisoning themselves? Rebecca Tarvin, now an assistant professor at UC Berkeley, explains how a change in poison frogs' DNA keeps them from being harmed by their own poison.

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