Octopuses have gotten a reputation for being cunning camouflagers and intelligent creatures. But some are known for a more ominous reason: They're deadly. One group — the blue-ringed octopus (genus ...

Being bitten by a strange animal can be extremely scary, especially since so many species use venom against their prey. One such animal is the blue-ringed octopus. While octopus venom is not typically ...

The octopus uses the neurotoxin tetrodotoxin (TTX), one of the deadliest toxins on Earth. The neurotoxin prevents communication signals from travelling between nerve endings and muscles by blocking ...

This unassuming octopus pairs bacterial chemistry with evolutionary efficiency to deliver one of the most powerful defenses in all of the ocean.

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Go diving into the intertidal waters of the Great Barrier ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Humans are not the only species who practice 'safe sex', although this ...