Blue Ringed Octopus



The Blue-Ringed Octopus, affectionately called “the BRO”, are a highly sought after underwater photography subject, topping the holy grail “critter list” for many underwater photographers and naturalists.

A blue ringed octopus is a small organism but has enough toxin to kill 30 adult Humans. There is no known antidote available. But artificial respiration could remove the toxin and save the life of the victim.



1)The blue-ringed octopus, like all octopuses, has three hearts and blue blood.

2) The blue-ringed octopus is commonly found in shallow, sandy areas surrounding the coastal reefs of Australia and the western Indio-Pacific.

3) Like all octopods, the blue-ringed octopus has no skeleton and is thus very flexible and maneuverable. It can squeeze into tiny crevices and make dens in bottles, aluminum cans, or mollusk shells. The blue-ringed octopus is also known to burrow into sand or gravel to conceal itself.

4) The Blue ringed octopuses is very small in size. It is only 5-7 inches long. It could easily fit into the palm of your hand. But never dare to do it because it might kill you.

5) The toxin of a Blue ringed octopus is 10,000 times more toxic than Cyanide. The Toxin is produced by bacteria in the Salivary Glands of the Octopus.

6) During the Reproductive process both Male and female Octopus will die. The male dies soon after mating with the female Octopus. On average, a Blue ringed octopus lays 50-100 eggs. The female octopus protects the eggs for many months. During this period the female Blue ringed octopus does not eat anything and will die just after hatching the eggs.

7) When a Blue ringed octopus takes rest, the ring does not look blue. But when it provokes, the ring burst into bright blue color.

8) The Blue ringed Octopus takes rest during the day and goes for hunting at night.

9) The main diet of a Blue ringed octopus consists of small fish, crab, shrimp and other smaller marine creature.

10) A juvenile Blue ringed octopus is as small as pea.

11) The female lays her eggs in several unattached clumps, which she carries in her arms until they hatch. After the young emerge from their eggs, the mother dies.

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April 9, 2016 |

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