The toxin, epibatidine, can be found in frogs in the wild in South America or manufactured in a lab.

The modern poison has become less a medieval cliché than a geopolitical signature flourish.

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

Epibatidine is about 100 times more potent than morphine, and derived from frogs native to South America ...

European allies' findings that Putin critic Alexei Navalny was killed with a rare toxin from poison dart frogs is "troubling," said Secretary of State Marco Rubio on Sunday, adding the U.S. is not ...

Russia “had the means, motive and opportunity to administer this poison" to Navalny, a joint statement from five European countries claims ...

ALEXEI Navalny was poisoned with a deadly dart frog toxin administered by Russian prison thugs on Vladimir Putin’s orders, it has been claimed. The Russian opposition leader, 47, was found ...

Dart frogs in captivity do not produce the toxin, and it is not found naturally in Russia, five European governments said.

Russian opposition leader Alexei Navalny was fatally poisoned with a toxin from Ecuadorian dart frogs that is 200 times ...

Five European countries on Saturday accused Russia of ‘poisoning’ opposition leader Alexei Navalny in prison using a ‘rare ...