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

Along the rocky shores of eastern Australia, a small brown octopus is unassuming as it blends in with its surroundings. When the octopus is scared or hungry, however, it becomes one of the most ...

Add Yahoo as a preferred source to see more of our stories on Google. Full paralysis and respiratory failure can occur after a bite. There is no antivenom; ventilator support is one of the best ...