The blue-ringed octopus is the only octopus to have a lethal toxin that can kill humans. Read here to learn about potential ...

The neurotoxin tetrodotoxin has been found for the first time in two species living out of water. Tetrodotoxin is a potent paralysis-inducing neurotoxin found in a multitude of aquatic organisms, but ...

In Japan, puffer fish is considered a delicacy, but the tickle to the taste buds comes with a tickle to the nerves: fugu contains tetrodotoxin, a strong nerve toxin. In low doses, tetrodotoxin is ...

Site 1 sodium channel blockers such as tetrodotoxin and saxitoxin are small-molecule drugs with powerful local anesthetic properties. They provide pain relief without toxic effects on local nerves and ...

Alternatives to opioids for treating pain are sorely needed. A study in rats suggests that tetrodotoxin, properly packaged, offers a potentially safe pain block. Opioids remain a mainstay of treatment ...

Tetrodotoxin immobilises the female – who is about two to five times bigger than the male – so mating can occur, researchers observed Male blue-lined octopuses inject females with venom during sex, ...

A study on the neurotoxin titled "A concise synthesis of tetrodotoxin" has been published in the journal Science. Researchers from the New York University (NYU) have devised a new 22-step process for ...

The poisonous puffer fish, which inflates itself into a small balloon when caught, lives in most of the world’s oceans. But only in Japan, where it is called fugu, has it become a national tradition.

This article originally appeared in Knowable Magazine. From the brightly colored poison frogs of South America to the prehistoric-looking newts of the Western US, the world is filled with beautiful, ...