Add Yahoo as a preferred source to see more of our stories on Google. A teenager in Australia nearly died from a poison octopus' bite after he pocketed a seaside souvenir. 18-year-old Jacob Ettington ...

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 ...

The blue-ringed octopus is one of the smallest and most dangerous sea creatures in the world. Measuring only slightly more ...

Some of the most dangerous creatures on the planet are not the ones with the sharpest teeth or the largest bodies. They are, in many cases, small enough to sit on a fingernail. The blue-ringed octopus ...

When they're alarmed, blue-lined octopuses display iridescent blue rings on their arms to ward off approaching predators. Totti via Wikimedia Commons under CC BY-SA 4.0 Animals have evolved many ...

It’s an octopus-eat-octopus world. Scientists have discovered that when mating, male blue-lined octopuses will inject a powerful, incapacitating neurotoxin into the hearts of female octopuses — to ...

There are some 300 known species of octopus. From the huge giant Pacific octopus (Enteroctopus dofleini) to the tiny poisonous blue-ringed octopus (genus Hapalochlaena), from the shallow-water mimic ...