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Giant Pacific Otopus (National Geographic)



Terrestrial (Earth)
Sphere Land, Ice, Water (Ocean), Air, Life (Cell, Gene, Microscope)
Ecosystem Forest, Grassland, Desert, Arctic, Aquatic

Tree of Life
Plant Flower, Tree
Invertebrate Cuttlefish, Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human


These are organized by a classification scheme developed exclusively for Cosma. More…



The Octopus News Magazine Online


octopus : any of a genus (Octopus) of cephalopod mollusks that have eight muscular arms equipped with two rows of suckers; broadly : any octopod excepting the paper nautilus — Webster

octopuses or octopi (Merriam-Webster)
OneLook, Free Dictionary, Wiktionary, Urban Dictionary


Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords


Octopus is a soft-bodied, eight-armed mollusc of the order Octopoda. Around 300 species are recognized and the order is grouped within the class Cephalopoda with squids, cuttlefish and nautiloids. Like other cephalopods, the octopus is bilaterally symmetric with two eyes and a beak, with its mouth at the centre point of the arms (which are sometimes mistakenly called “tentacles”). The soft body can rapidly alter its shape, enabling octopuses to squeeze through small gaps. They trail their eight arms behind them as they swim. The siphon is used both for respiration and for locomotion, by expelling a jet of water. Octopuses have a complex nervous system and excellent sight, and are among the most intelligent and behaviorally diverse of all invertebrates. — Wikipedia

Encyclopædia Britannica


Octopus Facts (Alina Bradford, Live Science)
Ten Curious Facts About Octopuses (Rachel Nuwer, Smithsonian.com)
Octopus Facts (Alina Bradford, Live Science)




On Ecstasy, Octopuses Reached Out for a Hug (JoAnna Klein, New York Times)



Fossil Octopuses (The Octopus News Magazine Online)


WorldCat, Library of Congress, UPenn Online Books, Open Library



Why the octopus brain is so extraordinary (Cláudio L. Guerra, TED-Ed)

Octopus and Squid (Biology4Kids)


OER Commons: Open Educational Resources


The Octopus News Magazine Online, Phys.org, NPR Archives









A Brief History Of Octopi Taking Over The World (Kelsey D. Atherton, Popular Science)
Octopus Jokes (Worst Jokes Ever)


OEDILF: The Omnificent English Dictionary In Limerick Form


Song Lyrics


Giant Squid & Octopus: History and Evidence (Anomalies)
4 Cephalopods from Myth and Folklore: Celebrating World Octopus (Kattyayani’s Blog)



The Octopus News Magazine Online TONMO.com: Your Cephalopod Information Center (Octopus, Squid, Cuttlefish, Nautilus, Fossils)

  • My new Octopus
    by invalid@example.com (Lov80) on March 28, 2020 at 1:31 pm

    Just want to introduce you to my new water-pet that came two days ago. Its a Castilloctopus Macropus a kind of red-brown octo. It arrived in very good condition. While acclimating the water he already wanted to swim into the tank and instantly played with my toy water balls. The other day he already strongly pulled out the shrimp from my stick. He's very strong and over 25 cm/10 inch in total length. Still indecisive about his name. The only drawback on my side is the fact that his species is […]

  • COVID-19
    by invalid@example.com (tonmo) on March 27, 2020 at 9:24 pm

    So far, no impacts to TONMOCON VIII at MBL in Woods Hole, MA in October. I don't expect there to be; we are full steam ahead! Meanwhile, out of curiosity, checking in with the community: A) Have you tested? (if so, result?) B) Do you know anyone who has tested (if so, result?) C) How has this directly impacted you? Personally, I'm no for A and B. For C, we've got the kids coming home from college (online classes only at least through March). Also, my wife is a pre-K teacher but in our county […]

  • Octopus Health Check-ups
    by invalid@example.com (qiazopus) on March 27, 2020 at 4:32 pm

    Hello all! I'm reading up a year in advance on octopus care and would like to ask all the experienced keepers here if they could share what are the different sorts of warning signs or health indications to look out for when observing them to make sure that they're doing well? I understand it can be difficult to describe in words but I'd greatly appreciate it! Thank you.

  • Feast Your Eyes on Australia's Newly Explored...
    by invalid@example.com (octobot) on March 27, 2020 at 5:23 am

    From Scientific American: Feast Your Eyes on Australia's Newly Explored Depths [Video]. Take a few moments to enjoy stalked barnacles, googly-eyed glass squid and other ...Continue reading...

  • Kestra
    by invalid@example.com (sedna) on March 27, 2020 at 2:03 am

    Philip at KP Aquatics has done it for me again!!! Two weeks ago, I ordered a batch of live rock to cycle our bio cube with. I got a note from him right away asking if I would like the little Briareus he had in stock. DUH!!! The little one has been here for two full weeks now. It is still very shy, but comes out in the evenings and is stick feeding. I’m not sure if it’s male or female yet, but I have settled on another name inspired by Star Trek. This is Kestra!

Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • New genetic editing powers discovered in squid
    on March 23, 2020 at 6:05 pm

    Revealing yet another super-power in the skillful squid, scientists have discovered that squid massively edit their own genetic instructions not only within the nucleus of their neurons, but also within the axon—the long, slender neural projections that transmit electrical impulses to other neurons. This is the first time that edits to genetic information have been observed outside of the nucleus of an animal cell.

  • Stable conditions during cell division
    on February 28, 2020 at 1:04 pm

    Errors during cell division can trigger the development of cancer. No wonder that this central process is controlled by multiple regulators and guards. Alex Bird's research group at the Max Planck Institute of Molecular Physiology has discovered a hitherto unknown key player and how it provides the necessary stability to the distribution process of the genetic information by repurposing a long-studied factor in cellular trafficking.

  • Video: Deep-sea footage helps researchers...
    on February 18, 2020 at 12:51 pm

    Biologists are using footage from remotely operated vehicles to better understand where deep-sea octopuses prefer to live.

  • 'Racing certainty' there's life on Europa, says...
    on February 6, 2020 at 1:51 pm

    It's 'almost a racing certainty' there's alien life on Jupiter's moon Europa—and Mars could be hiding primitive microorganisms, too.

  • Improving adhesives for wearable sensors
    on February 5, 2020 at 3:18 pm

    By conveniently and painlessly collecting data, wearable sensors create many new possibilities for keeping tabs on the body. In order to work, these devices need to stay next to the skin. In a study described in ACS Omega, researchers tweaked a widely used polymer to create a potential new adhesive to keep these sensors in place.