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Interesting Blue ringed octopus facts

Updated on March 2, 2013
Blue ringed Octopus with dark blue ring in Mabul Island, Malaysia
Blue ringed Octopus with dark blue ring in Mabul Island, Malaysia | Source

The Blue ringed octopuses are very small in size but one of the most venomous marine organisms in the world. They are found in the Australian southern coast. There are at least 5 different species of Blue ringed octopuses are found in the ocean. A Blue ringed octopus is as small as a golf ball but contains enough toxin to kill 30 adult human.

In this Hub I will share some of the interesting facts about Blue ringed octopus.

Blue-Ringed Octopus, Mabul Island, Malaysia
Blue-Ringed Octopus, Mabul Island, Malaysia | Source
Blue-Ringed Octopus, Mabul Island, Malaysia
Blue-Ringed Octopus, Mabul Island, Malaysia | Source

Interesting blue ringed octopus facts

1) 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.

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

3) 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.

4) 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.

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

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

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

8) Mostly Blue ringed octopuses are found in the southern cost of Australia.

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

I hope you have enjoyed reading all these interesting Facts. Please do comment and rate this hub. Thank you very much for reading my Hub.

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      Riordan 4 months ago

      I did it for a slide show for my class

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      Ben 16 months ago

      This has helped me find some cool facts for a school project! thank you!!!

    • HoverLock profile image

      Hannah Overlock 2 years ago from Maine

      This was a very interesting article! The tiny critters in the ocean tend to be the most dangerous. The Irukandji jellyfish is also very small, but deadly.

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      Miss awesome $$$ 3 years ago

      Wow I never knew almost all. This stuff

      But I did know about their diet and color changing ability

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      Thanks you . I like the hub pages . 4 years ago

      Thank you. I like the hub pages

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      olivia313 4 years ago

      your facts helped me on my science report.


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      Hope Marie Nightingale 5 years ago

      I did this for a RePort

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      Justin 5 years ago

      Can you please share some more facts

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      Nelly 5 years ago

      My son has caught 3 in his bait trap in lake Macquarie in 3 different locations over the past year ! Scary .

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      diana 5 years ago

      this is super interesting!!! totally got me wondering about what amazing animals we don't even know about!!!:)

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      lllll (with bob) 5 years ago

      i gotta go c ya bro.

    • profile image

      bob (with lllll) 5 years ago

      these are some cool facts.

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      lllll 5 years ago

      i am doing a project on them, they are soooooo cool. thanks for the facts bro.

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      lllll 5 years ago


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      something 5 years ago

      Ummm in skool and I have to si this project. I picked the Blue ringed Octopus...So thanks for theses facts

    • profile image 5 years ago

      really very interesting.... amazing... thank you so much

    • profile image

      purplemonkeydishwasher 5 years ago

      thanks this is really going to help for my science test on an invertebrate which ive got the blue ringed octopus so thank you so much for helping i suggest others use this site it is very help im confused on one thing though othe sites say blue ring octopus are daytime hunters but here it says they are night hunters so which one is it really day time ot nighttime?? thanks again for the help of this site im so pleased i never thought i could find something so helpful thank you!!! :)

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      packerman27 6 years ago

      im confused????????????????????

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      tnvrstar 6 years ago from doha, qatar

      Glad finally someone said it is awesome :) Thanks for the comments

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      tim 6 years ago

      this is awesome

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      Jessie 6 years ago

      I found this information to be quite helpful to me as I often go to the beach with my dad and look through rock pools for shells.

      P.s. I will tread with caution next time I'm at the beach

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      Gail Louise Stevenson 6 years ago from Mason City

      The colors are very vibrant! Very colorful, and the small octopus sure is deadly. I sure would not want to hold one in my hand! Great Hub! Fascinating facts that are educational and good for people to know.