The most notorious poison associated with dart frogs is batrachotoxin. In a shocking twist, the mysterious poisoning of Alexei Navalny has been linked to a toxin so potent it's used by indigenous ...

A joint report alleging that a poison dart frog toxin has been linked to the death of Russian opposition leader Alexei Navalny rippled quickly around the globe among scientists. The allegations raised ...

Male Sierran chorus frogs change their breeding calls depending on the temperature, a UC Davis study found. (BenderPhoto, Getty Images) When the time is right, a good love song can make all the ...

A study from the University of California, Davis, found that temperature affects the sound and quality of male frogs' mating calls. In the colder, early weeks of spring, their songs start off ...

A rare frog poison has been named as the cause of Russian democracy fighter Alexei Navalny's 2024 death. But it's unlikely to have come from a frog. A poison found in threatened frog species in the ...

Scientists once thought that a male frog dubbed Romeo was the last of his kind. Then, when more Sehuencas water frogs were discovered in 2018, they hoped he would mate with a female they called Juliet ...

Epibatidine is about 100 times more potent than morphine, and derived from frogs native to South America Russia killed Alexei Navalny with frog toxin, UK and four European allies say Epibatidine, the ...

I have been to many of the street protests and events in Portland and now wear a frog hat that a good friend crocheted for me. This has caused me to think about the symbols and ideas the frog ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Epibatidine, which can be secreted by Anthony's poison arrow frog onto its skin, was blamed for Alexei Navalny's death by five European nations Russian opposition leader Alexei Navalny was killed ...

Russian opposition leader Alexei Navalny died in prison after being poisoned with a deadly toxin found in Ecuadorian dart frogs, the U.K. and other allies claimed Saturday. There is no possible ...

The Russian state has long been accused of using exotic poisons to murder its opponents - whether the nerve agent Novichok or radioactive plutonium isotopes. Could Alexei Navalny have been killed by ...