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 ...

A poison found in threatened frog species in the Ecuadorian foothills has been named as the cause of Alexei Navalny's death in prison. Scientists from Germany, France, the Netherlands, Sweden and the ...

Poison frogs exhibit one of nature’s most fascinating adaptations through the acquisition and use of chemical defences. These amphibians predominantly obtain potent alkaloid toxins not via endogenous ...

Late Russian opposition leader Alexey Navalny's mom says a European assessment that he was poisoned in prison "confirms what ...

Britain and its allies said only Russia would have the ‘means, motive and disregard’ to launch such an attack – as his widow ...

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 ...