Cephalopod Biology News

Discussion in 'Cephalopod News' started by octobot, Sep 29, 2013.

  1. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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  2. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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  3. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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  4. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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  5. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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  6. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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  7. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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  8. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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    Penn Science Café: Squid Camouflage
    Penn: Office of University Communications
    Alison Sweeney has a Ph.D. in biology, yet is a member of Penn's Department of Physics and Astronomy. What is a physicist doing studying giant clams and exotic squid? Her research is focused on photonic structures found in these creatures that give ...


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  9. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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    Octopus Suckers Have Groovy Secret for Strength
    Scientific American (blog)
    Previous studies have described the basic anatomy of octopus suckers, which rely on a cavity toward the top and flexible sides to create pressure and form a seal. But the new study finds that these suckers have been hiding some surprising features ...


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  10. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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    Don't be scared of the vampire squid
    Boing Boing
    Maggie Koerth-Baker is the science editor at BoingBoing.net. She writes a monthly column for The New York Times Magazine and is the author of Before the Lights Go Out , a book about electricity, infrastructure, and the future of energy. You can find ...

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  11. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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  12. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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  13. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    As has been noted previously with the referenced DeepSeaNews article, vegetarian is not likely the proper word. Scavenger doesn't quite fit because it does not hunt dead things but marine snow cannot be considered plant matter and would contain a lot of animal protein as decay or detritus. I am hoping MBARI will have more info and a live display come TONMOcon VII.

    Notes later added to the DeepSeaNews article:
    I'm not sure we had anything to do with the addendum but I like it :grin:
     
    Last edited: Jan 12, 2014
  14. Jean

    Jean Colossal Squid Supporter

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    soooooo......a detritivore then! This is a "real" word and seems to fit here!
     
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  15. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    What I find most interesting in this "discovery" is that we have observed this kind of feeding in many of our tank raised octopuses. Back with my first mercatoris (also here, and here) I called it "filter feeding" but that term does not quite fit. What we noticed (and still see) is an arm or two waving in the water column, particularly at night and usually just the end 1/3 of the arm. Because we see it almost exclusively at night, I have never gotten a really clear video. I think the uniqueness here is that vampy likely feeds only this way and has an additional appendage but not that it is a unique feeding style.
     
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  16. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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  17. octobot

    octobot Robotic Staff Staff Member Robotic Staff

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  18. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Question: How do you know if an animal "feels" pain (or at least has a neuro sensitivity)?

    Albeit, the stick should be of a known size and flexibility, minimally intrusive and not cause skin damage. @robyn, helps determine octopus reactions.

    Do lobsters and other invertebrates feel pain? New research has some answers. Tamar Stelling, March 10 2014

     
    Last edited: Mar 11, 2014
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  19. robyn

    robyn Vampyroteuthis Supporter

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    ;) Yes, but we poke for science!

    Thanks for highlighting this one, Denise! I will be talking about this more on NPR in the coming weeks, although I don't know when exactly.
     
  20. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    :sagrin: I DID qualify the stick but simply could not resist the title. Cool to see you doing some work with octopuses!
     

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