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Hi All,
I'm sharing this because the observation and response are more general. Aplysia are so totally cool, and played such a seminal in our understanding of neural activity.
The new digs are awesome. Finally, kinda what the Exploratorium could'a been, but it took 40 years to realize it. You're all invited at some point.
All the best,
C
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On Mar 29, 2013, at 9:50 AM,
> Thanks for this
> It's still unseasonable cold here in Chicago and this brought back memories of introducing the Caribbean version of this animal to students on marine biology trips to the Florida Keys and Bahamas. I'll even admit to 'tickling' the critter to show the inking reaction. I think we tie-dyed a shirt with it one year. And yes, it was quite sticky.
> How is it going in the new digs?
> Linda
>
> -----Original Message-----
> From: Charles Carlson [mailto:[log in to unmask]]
> Sent: Thursday, March 28, 2013 9:19 AM
> Subject: Video: Never Mess With a Sea Hare - ScienceNOW
>
> ISEN-ASTC-L is a service of the Association of Science-Technology Centers Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
>
> Hi All,
>
> For many, many years we did an exhibit which utilized the California Sea Hare, Aplysia californica. It has one of the most easily accessible nervous systems and they're colorfully labelled, with large neurons of small numbers. Aplysia ink in response to predators, like many mollusks (think octopi and squid). The ink has the ability to obscure vision, and it also gums up sensory cells.
>
> This link takes you to a pretty cool video of an Aplysia defending itself from a Spiny lobster. It turns out that one compound in the ink in particular decreases chemical sensitivity.
> http://news.sciencemag.org/sciencenow/2013/03/video-never-mess-with-a-sea-hare.html
>
> Such effects have long been suspected but in the study, researchers were able to isolate one compound.
>
> For those of you familiar with Aplysia, the video also shows an Aplysia leaving the scene of the confrontation at a record pace, for an Aplysia.
>
> C
>
> Charles Carlson
> Senior Scientist | Teacher Institute
>
> http://blogs.exploratorium.edu/whyintercept/
> Twitter: @charliec53
> email: [log in to unmask]
> Tel: 415-528-4319
> Fax: 415-885-6011
> exploratorium.edu
> facebook.com/exploratorium twitter.com/exploratorium The Embarcadero, Piers15 & 17 S.F., CA 94111
>
>
>
>
>
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For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.
Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.
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