by Charles Q. Choi, Live Science Contributor | August 06, 2015 12:23pm ET
Although scientists have long known of poisonous frogs, these are the first venomous frogs — that is, they not only secrete poison, but are armed with weapons
that can deliver this poison into victims.
that can deliver this poison into victims.
Most amphibians, such as frogs, newts and salamanders, concentrate or secrete poisons in skin glands to ward off predators. Frogs include some of the most toxic animals on Earth — for instance, the 2-inch-long (5-centimeter) golden poison dart frog has enough toxin to kill 10 grown men, and the indigenous Emberá people of Colombia have used its poison for centuries in blowgun darts.
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