See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A new species of poison dart frog has been discovered in the heart of ...

Epibatidine, which can be secreted by Anthony's poison arrow frog onto its skin, was blamed for Alexei Navalny's death by five European nations Russian opposition leader Alexei Navalny was killed ...

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 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 ...

Some harlequin frogs have lost their poison—and their ability to defend themselves. Scientists are on the case.

A team of wildlife researchers from Instituto Nacional de Pesquisas da Amazônia, in Brazil, working with a colleague from the National Museum of the Czech Republic, has discovered a new species of ...

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If you liked this story, share it with other people. Twelve pairs of poison dart frogs were recently translocated in Panama in a bid to strengthen the species’ chances of survival and provide answers ...

If not for a pair of Smithsonian scientists, the fingernail-size frog from Brazil would have likely gone extinct without ever being described Jack Tamisiea Museum scientists collected this frog ...

Russian opposition leader Alexei Navalny was killed using a deadly toxin found in poison dart frogs in South America, the UK and some of its European allies have said. Traces of epibatidine were found ...

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 ...