The blue-ringed octopus may be small enough to fit in the palm of your hand, but its venom is among the deadliest biological weapons found anywhere in the animal kingdom. Armed with a neurotoxin ...

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

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A British man recorded himself handling a blue-ringed octopus - one of the most venomous animals on earth - while on holiday in ...