I found the article very interesting. Not click bait at all.

I didn't realize that an octopuses brain was spread out all over its body.

• ortusdux

  today at 7:44 PM

  Not only that, they have the highest ratio of brain-to-body-mass of any invertebrate.

  https://en.wikipedia.org/wiki/Cephalopod_intelligence

  • hermitcrab

    today at 9:23 PM

    Yes, so maybe think twice before eating one.

    • bayganyo

      today at 9:59 PM

      I find it interesting how people justify (or not) whether to eat another animal.

      • sinsterizme

        today at 10:25 PM

        Can you explain?

      • micromacrofoot

        today at 10:16 PM

        I like to see where they are farmed before I decide... and having seen much of that in the US I've landed on "maybe some bugs are ok to eat."

    • PowerElectronix

      today at 9:32 PM

      They're too delicious to consider how smart they are.

      • unethical_ban

        today at 10:15 PM

        I cannot judge too harshly, since I still eat many kinds of animal. However, I never ate octopus growing up, and I learned of their intelligence before I tried it more than a few times. It was easier to "never start" than to quit. And besides, octopus is not that great and if you insist on eating seafood I find pretty much any other item to have more enjoyable texture.

      • testaccount28

        today at 9:35 PM

        [flagged]

• goatlover

  today at 8:36 PM

  It's like 9 brains, one central one in the head and 8 semi-autonomous ones in the arms. Makes one wonder what an octopus consciousness is like. Is it distributed among the nine brains, or focused on the central one? If the latter then the arm-brains would be zombie minds. It's also possible the 8 arms have their own separate experiences.

  We also have a nervous system distributed throughout our bodies, so we do experience the full body, but the neural signals are sent to one location, not nine. We experience ourselves as a unified hole, allowing exceptions for certain conditions.

  • VorpalWay

    today at 9:34 PM

    > We also have a nervous system distributed throughout our bodies, so we do experience the full body, but the neural signals are sent to one location, not nine.

    Mostly yes. But we do have some processing that bypasses the brain: reflexes for example. The classic example is the kick reflex that doctors test with a small mallet on your knee. Or when you blink as something flies towards your eyes. It happens and your brain gets informed afterwards.

    But there are degrees of non-conscious processing, from the heart beating by itself and your guts doing their things, to the breath which will be on autopilot until you take control over it, to entirely voluntary things like moving about your limbs (for healthy individuals).

    Maybe the octopuses experience their disconnected brains somewhere on that spectra, where the limbs are semi-autonomous unless it focuses on them? (All we can do is speculate, there is no known way to learn the qualia of being an octupus.)

  • bookofjoe

    today at 9:31 PM

    Other Minds: The Octopus, the Sea, and the Deep Origins of Consciousness [excellent]

    https://www.amazon.com/Other-Minds-Octopus-Origins-Conscious...

  • cgriswald

    today at 9:10 PM

    If you haven't read it, you might enjoy Adrian Tchaikovsky's Children of Time series. It's fiction which explores different intelligences, with the second novel[0] dealing specifically with octopuses.

    [0] - https://en.wikipedia.org/wiki/Children_of_Ruin

I would imagine their intelligence is directly proportional to the so many degrees of freedom the arms have for grasping, but don't ask which one came first, chicken or egg?

lets splice in a gene fix for cephalopod senescence and get the invasion over with

• Razengan

  today at 9:54 PM

  I have this headcanon that an ancient ape civilization was at war with cephalopods and they created a weapon of mass destruction that artificially gimped octopus lifespans :'(

  • yieldcrv

    today at 10:22 PM

    mutations that occur after reproduction are never weeded out since the genes are passed on already, so natural selection on its own can result in this, just like cancer or lower safeguards against cancer such as short telomeres in humans

Pure, shameless clickbait as usual from Smithsonian magazine.

> Although there is no direct evidence that the adaptation is linked to expanded octopus brainpower,

I.e. the entire connection between this mutation and octopus intelligence is made up. Not even a shred of justification.

Correlation does not imply causation and it's not even clear this qualifies as correlation.