Octopus

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Giant Pacific Otopus (National Geographic)

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

General

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The Octopus News Magazine Online

Dictionary

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)
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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

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Introduction





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

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

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Fossil Octopuses (The Octopus News Magazine Online)

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

Octopus and Squid (Biology4Kids)

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

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OEDILF: The Omnificent English Dictionary In Limerick Form

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Folklore

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

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

  • (updated 12/9): 3 bimacs for sale ($185 includes...
    by invalid@example.com (tonmo) on December 11, 2019 at 5:18 pm

    FOR SALE: Two-spot octopus (O. bimaculoides) We currently have three [3] two-spot octopuses available for sale, at $185 each; includes shipping (US only).Small #1: [SOLD Nov 23rd] ~1.5 inch ML (mantle length) Small #2: see pic below [No longer available; Dec 9th] Medium: see pic below Large #1: [No longer available; Dec 2nd] Large #2: see pic below [No longer available; Dec 9th] Eligibility [IMPORTANT]: - Prior to your...(updated 12/9): 3 bimacs for sale ($185 includes shipping; US only)

  • Macro algae
    by invalid@example.com (suboc) on December 11, 2019 at 4:22 am

    Does any one keep macro algae in their octopus tank? I collected a small amount from the area that Spike what captured and it looks pretty cool. was wondering there would be any problems with more plants.

  • Your octopuses
    by invalid@example.com (Lov80) on December 10, 2019 at 1:47 pm

    I have heard that not just a few folks had to experience that an octopus that was ordered from far away did not even live a couple month in its new home. While others even arrive dead. Why is that? What's your experience?

  • Anya, O. briareus
    by invalid@example.com (sedna) on December 9, 2019 at 2:47 pm

    So a little over two weeks ago I got an email from Philip at KP Aquatics that they were going to get in to briareus, and asking if I want one… YES! A very large, mature looking octopus this one is. For as many I’ve had, it’s still hard to sext them sometimes. I think this is a girl, I haven’t seen any special attention to that third right arm. Of course, I’m hoping it’s a girl- I’ve always wanted a chance to try to raise large egg babies. For now, […]

  • The least sensitive kind of octopus?
    by invalid@example.com (Lov80) on December 7, 2019 at 6:58 pm

    What kinds of octopuses are the easiest to keep? -Today I talked to a sellor that told me that the octopus vulgaris are very sensitive when it comes to shipping and the risk of death while or short after shipping is kind of high. What species do live the longest after the giant pacific octopus? How old?


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.

  • 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.

  • Coral gardeners bring back Jamaica's reefs, piece...
    on December 3, 2019 at 9:31 pm

    Everton Simpson squints at the Caribbean from his motorboat, scanning the dazzling bands of color for hints of what lies beneath. Emerald green indicates sandy bottoms. Sapphire blue lies above seagrass meadows. And deep indigo marks coral reefs. That's where he's headed.

  • Fossils reveal swimming patterns of long extinct...
    on November 25, 2019 at 11:30 pm

    Computational fluid dynamics can be used to study how extinct animals used to swim. Scientists studied 65 million-year-old cephalopod fossils to gain deeper understanding of modern-day cephalopod ecosystems.

  • Breathing space for a marine world under pressure
    on November 19, 2019 at 2:50 pm

    A small, motorized fishing boat heads out to sea from the port of Sinabang, leaving behind the remote island of Simeulue, off the coast of western Sumatra. Noticeable on the deck is a tangle of plastic tubes, linked up to a roaring, spluttering engine. The on-board fishers are going "compressor fishing," a practice that involves divers searching the seabed for lucrative octopus, grouper and sea cucumber, all the while relying on air supplied by a single plastic lifeline, snaking precariously up […]