The toxin, epibatidine, can be found in frogs in the wild in South America or manufactured in a lab.

Add Yahoo as a preferred source to see more of our stories on Google. A joint report alleging that a poison dart frog toxin has been linked to the death of Russian opposition leader Alexei Navalny ...

Add Yahoo as a preferred source to see more of our stories on Google. This extremely toxic, nicotine-like compound originates from the Epipedobates genus of poison dart frogs, found exclusively in ...

The poison dart frog may be tiny, but it is one of the most toxic animals on Earth. Found in the rainforests of Central and South America, these brightly colored frogs carry powerful toxins in their ...

There is no innocent explanation for the toxin being found in samples taken from Navalny's body, Foreign Office says.

The modern poison has become less a medieval cliché than a geopolitical signature flourish. Precise, deniable, and in Russia’s case, grimly familiar. Accusations of Russian poisoning surfaced again ...

Russia's ambassador to Britain has denied that poison from a dart frog was used to kill opposition leader Alexei Navalny.

Five European nations, including the UK, France, and Germany, have accused Russia of using a toxin from poison dart frogs to kill Kremlin critic Alexei Navalny. The countries allege that Navalny was ...