User blog:Super Monkey 8/Blue-Ringed octopus facts.

Did you know that blue ringed octopuses can reach up to 20 cm in length? and also, did you that its venom is strong enoyugh to kill a human 'your lucky your not in australia'?

Did you know that their rings glow when they are threatened? that tells you that you must stay away.

they live in the great barrier reef.