Frogs Get Poison from Ants

The skin of some frogs becomes poisonous after they eat certain kinds of ants.

By Emily Sohn, 00:00 AM May 9, 2004

Frog skin is often smooth and wet. The skin of some types of frogs also happens to be extremely poisonous. Now, scientists say they've discovered one of the major sources of this poison. It comes from ants that the frogs eat.

Ants in the diet of this poison dart frog, known as <span class=normal>Dendrobates pumilio</span>, provide the toxin that protects the frog.

Ants in the diet of this poison dart frog, known as Dendrobates pumilio, provide the toxin that protects the frog.

M. Donnelly

Frogs have an enormous variety of chemicals in their skin. Depending on the chemicals present, some species simply taste bad. Others are so toxic ...

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