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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 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)

  • Mr. Ocho (O.Bimaculoides)
    by invalid@example.com (Spinelli1) on November 19, 2019 at 12:54 am

    First and foremost, I would like to thank Tony and anyone else that helped out the bimac program together. Super awesome! October 24, 2019 THE ARRIVAL I'm not going to lie, I was very nervous about shipping. By the time he arrived I thought there was no way he survived. Anyway, package came in right at 10:30 and we opened it up.... (Videos attached, unboxing and opening bag) (I was unable to embed or put full video for some reason) (nevermind, it says they are not uploading as […]

  • California two-spot octopus (O. bimaculoides)...
    by invalid@example.com (tonmo) on November 18, 2019 at 7:25 pm

    FOR SALE: Two-spot octopus (O. bimaculoides) We currently have three [3] two-spot octopuses available for sale, at $100 each + $50 shipping (US only).Small: [SOLD] ~1.5 inch ML (mantle length) Medium: [SOLD] ~2.5 inch ML Large: [NO LONGER AVAILABLE] ~3.5 inch ML Eligibility [IMPORTANT]: - Prior to your order being accepted, you must first start a thread in our TANK TALK forum, and include a photo of your ceph-ready tank, along with specifications (water temp, ph, etc.). Orders placed without a […]

  • Julia from Idaho!
    by invalid@example.com (Julez1303) on November 18, 2019 at 7:06 pm

    Hello! Nov-18-2019 This last year I went to Seaquest and fell even more in love with the Octopus when I was able to interact with it. We have an Aquarium about 100 miles away in Spokane, and they also have an octopus, but I recently learned they aren't able to interact the same way as the other aquarium. that's fine by me as I understand. Still. I would love to take a trip over to Blue zoo and see what they have. I want to learn everything about […]

  • Callistoctopus macropus suitable for home...
    by invalid@example.com (Benjie) on November 18, 2019 at 6:54 pm

    Hi there, our local fish store today told us they were offered an octopus labeled as "Callistoctopus macropus". Nothing of this animal is known, size, origin etc... Some research on Callistoctopus made us a bit sceptic: - night-active? - difficult to feed? - can get really huge? So, would you advise that we should stay in touch and get more information, or should we abandon the idea? ... that said, I was unable tu run a search in the forums ... where has the "search" button gone??? thanks for […]

  • Tropical octopus species for mid-sized tank
    by invalid@example.com (Vindicus) on November 18, 2019 at 2:50 am

    Hi all, Recently picked up a used tank from work that would suit itself well to being escape-proofed and I've been considering trying an octo at home. The tank is approximately 280 gallons and measures 72"x30"x30" (182x76x76cm). I would prefer a mid-sized species that I can interact with, as I used to be able to play with a GPO at my old job and I miss it. However, I'd rather not run a chiller on this tank for a number of reasons, foremost among them the fact that I'm setting up a large reef […]

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.

  • Can the long-lost abalone make a comeback in...
    on November 18, 2019 at 2:30 pm

    Hunched over a tank inside the Bodega Marine Laboratory, alongside bubbling vats of seaweed and greenhouses filled with algae, Kristin Aquilino coaxed a baby white abalone onto her hand.

  • A marvelous molecular machine
    on November 15, 2019 at 10:53 pm

    Squids, octopuses and cuttlefish are undisputed masters of deception and camouflage. Their extraordinary ability to change color, texture and shape is unrivaled, even by modern technology.

  • The mysterious 'Tully Monster' fossil just got...
    on November 11, 2019 at 3:35 pm

    Every now and again, scientists discover fossils that are so bizarre they defy classification, their body plans unlike any other living animals or plants. Tullimonstrum (also known as the Tully Monster), a 300m-year-old fossil discovered in the Mazon Creek fossil beds in Illinois, US, is one such creature.

  • Aquaculture offers lifeline to floundering...
    on October 31, 2019 at 9:50 am

    With fish stocks declining in the Mediterranean, struggling Moroccan fishermen are hoping to turn to aquaculture as a way to secure their future.

  • Brazil oil spill leaves local fishermen in the...
    on October 27, 2019 at 7:59 pm

    Holding his breath for 90 seconds, Arivaldo Sousa dives to depths of up to 65 feet (20 meters) to haul lobsters from the seafloor off Bahia state, one of tens of thousands of fishermen who make a living from the rich waters in one of Brazil's top tourist destinations.