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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)

  • Welcome Peter Kilian (pkilian) to TONMO staff!
    by invalid@example.com (tonmo) on January 19, 2020 at 5:53 pm

    Hello cephalofolks, I'm very happy to announce the newest addition to the TONMO volunteer staff, Peter Kilian (@pkilian)! Peter currently works as a research assistant and aquatic animal technician at Harvard. We are thrilled to add another hands-on cephalopod expert to our team, supporting our great community of cephalopod enthusiasts and adventurers. You can read Peter's bio on our Meet The Staff page. Please join me in welcoming Peter to the TONMO den!

  • Maurice my octopus species??
    by invalid@example.com (Lov80) on January 19, 2020 at 3:42 pm

    Can anyone identify what kind of octopus my friend Maurice is? It was sold as octopus species and may come from Indonesia/Bali. I know that my photos are not the best.

  • At A Loss
    by invalid@example.com (dleo4590) on January 19, 2020 at 6:12 am

    Good Morning All, I have some very sad and unfortunate news. When we woke up this morning, we saw our male Caribbean Reef Octopus, Turq, had passed away and we are trying to find out why. One thing we had noticed is when we would have the wave pumps on he would occasionally stick his tentacles in and it would give him quite the surprise and then he would leave it alone but we noticed he had done this on more than one occasion. We actually found him caught in one of the pumps so we don't know if […]

  • TONMOCON VIII Registration Now Open
    by invalid@example.com (tonmo) on January 18, 2020 at 11:07 pm

    What: TONMOCON VIII, the biennial cephalopod conferenceWhen: October 16-18, 2020Where: Marine Biological Laboratory, Woods Hole, MAREGISTER HERE​ More details regarding agenda and attractions will be forthcoming. For now, you can expect that "meals" include the following:Friday, 10/16/2020: Dinner, evening mixer Saturday, 10/17/2020: Breakfast, Lunch, Dinner, coffee breaks, evening mixer & lobster boil Sunday, 10/18/2020: Breakfast, Lunch, coffee break We can expect a full day […]

  • Cephalopod DNA/Molecular/Genetic Studies/Health
    by invalid@example.com (DWhatley) on January 18, 2020 at 9:33 pm

    This is a review of the current status of ceph molecular data collection. @gjbarord is currently doing DNA work with the nautilus and hopefully will post where the information can be accessed once it is stored. The contribution of molecular data to our understanding of cephalopod evolution and systematics: a review A. Louise Allcock,A. Lindgren, J. M. Strugnell 2013 (subscription) Abstract The first DNA sequence of a cephalopod was published in 1983 and the first molecular paper […]

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.

  • The mysterious, legendary giant squid's genome is...
    on January 16, 2020 at 7:47 am

    How did the monstrous giant squid—reaching school-bus size, with eyes as big as dinner plates and tentacles that can snatch prey 10 yards away—get so scarily big?

  • 3-D movies reveal how cuttlefish determine...
    on January 8, 2020 at 7:00 pm

    While cuttlefish wearing glasses is an unexpected sight, a University of Minnesota-led research team built an underwater theater and equipped the cephalopods with specialized 3-D glasses to investigate how cuttlefish determine the best distance to strike moving prey. Their research revealed cuttlefish use stereopsis to perceive depth when hunting a moving target.

  • Underwater pile driving noise causes alarm...
    on December 16, 2019 at 9:14 pm

    Exposure to underwater pile driving noise, which can be associated with the construction of docks, piers, and offshore wind farms, causes squid to exhibit strong alarm behaviors, according to a study by Woods Hole Oceanographic Institution (WHOI) researchers published Dec. 16, 2019, in the journal Marine Pollution Bulletin.

  • There's a new squid in town
    on December 11, 2019 at 2:48 pm

    "Cephalopods were the first intelligent animals on the planet."

  • Squid pigments have antimicrobial properties
    on December 5, 2019 at 4:59 pm

    Ommochromes, the pigments that colour the skin of squids and other invertebrates, could be used in the food and health sectors for their antioxidant and antimicrobial properties. This is confirmed by analyses carried out by researchers from the University of Sonora in Mexico and the Miguel Hernández University in Spain.