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 ...

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

A rare frog poison has been named as the cause of Russian democracy fighter Alexei Navalny's 2024 death. But it's unlikely to have come from a frog. A poison found in threatened frog species in the ...

Precise, deniable and, in Russia’s case, grimly familiar. Poison has become less a medieval cliché than a geopolitical signature flourish in recent years. Accusations of Russian poisoning surfaced ...

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 ...

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 ...