Roaming At Night
Fast Fact:

Some times the Ringed Octopus has to change its habitat to the ocean when the water runs out of its tidal pool.

The Blue

Ringed Octopus

Why is the Blue Ringed Octopus so deadly?

The Blue Ringed Octopus is so deadly because of its venom can paralyze all the bones in your body including the one that help you breath. (In other ways you can not breath and will suffocate) The Blue Ringed Octopuses venom contains tetrodotoxin, 5-hydroxytryptamine, hyaluronidase, tyramine, histamine, tryptamine, octopamine, taurine, acetylcholine, and dopamine.The major neurotoxin part of blue-ringed octopus venom was known as maculotoxin but was later found to be close to as tetrodotoxin, a neurotoxin which is also found in pufferfish. Tetrodotoxin blocks sodium channels, causing motor paralysis and respiratory arrest within minutes of exposure, leading to cardiac arrest due to a lack of oxygen. The toxin is made by bacteria in the salivary glands of the octopus. (It can kill things very fast)


The Blue Ringed Octopus lives in tidal pools or warm shallow water. Tidal pools are usually found near Japan or Australia. Crabs, seaweed, hermit crabs, craw fish, octopuses, and fish are some animals that are found in tidal pools.

I Blend In With My Habitat


The Blue Ringed octopus is as small as your fist but very poisonous. When hunting/defending, 50-60 blue rings light up to show it is about to attack but when it not hunting it is beige with yellowish-blackish color. The Blue Ringed Octopus is camouflaged in it's habitat by it's rings. The Octopus has three hearts, eight tentacles, blue blood, and its brain is shaped like a donut. It also has suckers on the bottom of its tentacles and a hard beak.


Black And White Octopus


The blue Ringed Octopus only attacks when it is harmed or attacking for food. The Blue Ringed octopus is not aggressive by nature. When one of the Blue Ringed Octopuses' predators is attacking, the octopus will expel black ink to distract its attacker while it uses its tentacles to propel away.

Eight Tententicals


The Blue Ringed Octopus eats wounded fish, and shrimp.

Favorite Foods

  • Crabs

  • Craw fish

  • Mollusks

How it kills its prey:

When the Blue Ringed Octopus is attacking prey with a shell it breaks the shell with it’s beak and then kills it with its poison, then eats it.

White, Blue, And Yellow Octopus

Life Cycle

When the Blue Ringed Octopus is done mating, the male octopus dies shortly afterwords. The female octopus lays 50-100 eggs and the octopus does not eat at this point. After the eggs hatch, the female dies from starvation and the young octopi start their lives without either of their parents.

Vocabulary from text
Tidal Pool: A group of shallow water surrounded rocks with an opening to the ocean.
Octopi: A young octopus.
Beak: The Octopuses mouth.

Blue Ringed Octopus Without Showing It's Rings

http://wiki.answers.com 2/12/10
http://www.enchantedlearning.com 2/26/10
http://www.pbs/org/went/nature 2/3/10
http://Buzle.com 2/19/10-3/18/10

Rhodes,Maryjo.Hall,David.Octopuses And Squids.New York:Childrens Pres.2005
Jango-Collen,Judith.Octopuses.New York.Marshall Cavendish Corporation.2004
Kalman,Bobbie.Sjonger,Rebeca. The Amazing Octopus.New York.Crabtree Publishing Copmany.2003