The allegation feeds into a long history of high-profile poisonings in Russia, many targeting foes of President Vladimir Putin.

LONDON (AP) — 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 Kremlin denied Monday that it fatally poisoned former Russian opposition leader Alexei Navalny in 2024, after five ...

Some frogs are poisonous because of what they eat, not because they produce poison themselves. In the wild, certain brightly ...

Alexei Navalny died in February 2024 after he was transferred to a high-security penal colony above the Arctic Circle in Russia.

The Kremlin on Monday flatly rejected accusations from five European countries that the Russian state had killed Alexei ...

Marco Rubio told reporters today the findings by 5 European allies is "troubling," but "we don't have any reason to question" ...

Species such as the brightly coloured Anthony’s poison arrow frog and the Phantasmal poison frog secrete this substance onto their skin. Researchers theorise that the frogs acquire the toxin through ...

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 ...

Researchers discovered that a poison frog species described decades ago was based on a mix-up involving the wrong museum specimen. The frog tied to the official species name turned out to be brown, ...