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A joint report alleging that a poison dart frog toxin has been linked to the death of Russian opposition leader Alexei Navalny rippled quickly around the globe among scientists. The allegations raised ...

Add Yahoo as a preferred source to see more of our stories on Google. These 2-inch-long frogs live in a very specific part of the rainforest inwestern Colombia. The poison on their skin is called ...

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Strawberry poison dart frog, Dendrobates pumilio, in the nature habitat, Close-up portrait of poison red frog, Costa Rica, America© Pavel Russe/Shutterstock.com Researchers have identified a new ...

STAMFORD — An orange and black male frog not much longer than an inch carries a tiny tadpole up to the top of a tropical plant and places it inside a well of water to await its first meal: an ...

Poison frogs appear to have built their chemical defenses gradually: related frogs store low to moderate levels of ...