new walking octo video

Discussion in 'Cephalopod Journals' started by joefish84, Feb 20, 2006.

  1. joefish84

    joefish84 Sepia elegans Registered

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  2. Graeme

    Graeme Vampyroteuthis Registered

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    that's quite amazing.... very odd-looking!

    Graeme
     
  3. main_board

    main_board Vampyroteuthis Supporter

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    Interesting how they walk and jet backwards. There are clear advantages to jetting backwards, but walking? You'd think it would be better to face where it is you're going...unless over course you are trying to keep tabs on a pursuing predator.

    Cheers!
     
  4. Castor

    Castor Vampyroteuthis Supporter

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    Very impressive behavior. Wouldn't it be great to see a bimac do that in our tanks!
     
  5. mucktopus

    mucktopus Haliphron Atlanticus Staff Member Moderator

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    Glad you like the videos- it's a fun behavior! Check out more on:

    http://socrates.berkeley.edu/~chuffard/index_files/Bipedal_octopuses.htm
     
  6. Armstrong

    Armstrong Vampyroteuthis Registered

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    Only dis-advantage when jetting backwards is of course...bumping into nearby rocks and boulders under the sea. I actually never knew they swam "backwards" until a few years ago when it was described that way. I always thought the way they swam was foward because it's the way they have always gone...even traveling across the seafloor with their arms, the mantle always led the way. But I guess the way they see determines that they actually move backwards most of the time.
     
  7. tonmo

    tonmo Titanites Staff Member Webmaster Moderator

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    Thanks muckoctopus -- would like to have you as an Octopodcast guest sometime soon if I could!
     
  8. Andy Lister

    Andy Lister Vampyroteuthis Registered

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    Is that some sort of mimicry behaviour? The second one could be mimicing a lionfish or something.

    If it wasn't benificial then they wouldn't do it would they. Anyway im baking bread so got to run!

    ~A
     
  9. Oktoputeao

    Oktoputeao O. bimaculoides Registered

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    :welcome: again, octofriends. At last I've finish exams!!!

    I'm not agree with Andy, I think this is a method to try to hide the legs end out of the predator. Maybe i'm wrong and it is imitating a coconut.But coconuts swim in the seawater surface.

    The second one is clearly a method to imitate a sea des-rooted plant.

    Sorry for my poor english, give a little patience.

    Cheers
    Carles
     
  10. mucktopus

    mucktopus Haliphron Atlanticus Staff Member Moderator

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    Lionfish aren't very common where A. aculeatus live, they're nocturnal (rather than the diurnal octos), and they're fairly brightly colored, so the octos probably aren't mimicking them. As for what it might be trying to look like in the second picture with the "simething new soon" label- I can't think of a specific item on the reef flat- dead rotting algae, black plastic bag...who knows. If it is aiming for a visual defense, it might be effective just to sent the signal "you're not looking at an octopus" to a potential predator without needing a specific model to mimic. It could also bring the arms closer for some hydrodynamic advantage over the sprawled posture.
     

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