What is dart frog toxin, the poison linked to Alexei Navalny’s death? - The toxin is reportedly 100 times more powerful than ...

French Foreign Minister Jean-Noël Barrot said that Russian President Vladimir Putin is prepared to use biological weapons against his own people after claims emerged that Russian opposition leader ...

Five European countries claim a highly lethal epibatidine poison was used in the Russian opposition leader’s death, raising possible chemical-weapons treaty violations.

Epibatidine, a dart frog toxin allegedly used to kill Alexei Navalny, is a substance 100 times more potent than morphine.

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