- What is the dart frog toxin allegedly used to kill Alexei Navalny? BBC
- Russia accused of killing Navalny with dart frog toxin. What we know about the rare poison Axios
- Rubio says US does not dispute Navalny poisoning assessment by Europeans Reuters
- Russian opposition figure Navalny killed by toxin found in poison dart frogs, Europeans say CNN
- Why a dart frog poison believed to have killed Alexei Navalny points to the Kremlin NBC News
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What is the dart frog toxin allegedly used to kill Alexei Navalny? – BBC
