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 ...

Richard Blyth was fishing by the North Shore pier this week when he noticed the electric blue spots of the poisonous octopus. “I was a bit under the size of a tennis ball,” he said. Blue-ringed ...

It can appear harmless on the surface, yet the blue-ringed octopus is actually one of the most venomous sea creatures. Its bright blue rings and changing yellow colour are a warning sign that it gives ...