Some wasps and frogs evolved similar chemicals that cause pain in predators, even though the species are not closely related.

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

Add Yahoo as a preferred source to see more of our stories on Google. A joint report alleging that a poison dart frog toxin has been linked to the death of Russian opposition leader Alexei Navalny ...

The frog's poison is 200 times stronger than morphine, with Germany's foreign minister saying 'victims suffocate in agony'.

The poison dart frog may be tiny, but it is one of the most toxic animals on Earth. Found in the rainforests of Central and South America, these brightly colored frogs carry powerful toxins in their ...

Russia's ambassador to Britain has denied that poison from a dart frog was used to kill opposition leader Alexei Navalny.

Yes, there are some very poisonous frogs in the world. But it turns out researchers had no idea how scary some of these frogs were until recently when they discovered frogs that can deliver venom to ...

Britain and its allies said only Russia would have the ‘means, motive and disregard’ to launch such an attack – as his widow calls for Putin to be held accountable ...

Add Yahoo as a preferred source to see more of our stories on Google. Spanish police said Monday that they had dismantled a group accused of running a "spiritual retreat" that offered hallucinogenic ...

Spanish police said Monday that they had dismantled a group accused of running a "spiritual retreat" that offered hallucinogenic drugs and dangerous frog venom to clients from around the world. The ...