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 ...

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 ...

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 ...

LONDON -- Russian opposition leader Alexei Navalny was poisoned by the Kremlin with a rare and lethal toxin found in the skin of poison dart frogs, five European countries said Saturday. The foreign ...

Epibatidine, the highly potent toxin Britain has linked to the death of Alexei Navalny, is reportedly 100 times more powerful than morphine. This extremely toxic, nicotine-like compound originates ...

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 ...

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 ...