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

UK, Sweden, France, Germany and Netherlands say they're "confident" Russia poisoned Alexei Navalny with a lethal toxin from ...

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

Poison dart frogs have fascinated researchers. Now their toxin has allegedly been linked to the death of Russian opposition ...

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

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 ...

Researchers have identified a protein that may help a poison dart frog collect toxins from food and transport them to the frog’s skin, Erin Garcia de Jesús reported in “How poison dart frogs hoard ...

By Andrew Osborn MOSCOW, Feb 16 (Reuters) - The Kremlin on Monday flatly rejected accusations from five European countries ...

A new species of poison dart frog has been discovered in the heart of the Brazilian Amazon, where dense rainforests host some of the most diverse and complex ecosystems on Earth. In a study published ...

Poison? What poison? Some bacteria may treat the powerful toxins bathing poison dart frog skin like a buffet. The alkaloid chemicals that poison dart frogs wield on their skin increase the variety of ...

This newly discovered poison frog may represent an evolutionary step on the pathway towards developing brilliant warning coloration associated with other poison dart frogs. A small reddish-brown frog ...