Re: I am looking for an organism for an art piece

There's a lot of organisms sensitive to light and sound...  I'm trying to 
picture the work, imagining some sort of container with the organism 
moving towrds something everytime there's a light?  Like a long chamber?  
Well, Planaria, and all flatworms, are pretty cool looking and sensitive 
to light.  Most protists are sensitive to light, but they are really 
small, you'd need a microscope.  You can see flatworms with your eyes.  
If you wanted to use a larger organism, it would probably be more 
attracted to the dark, you could have continuous light except when foot 
traffic walked by.  Cockroachs hate light, so that might work.  I'm not 
sure what to say, because all animals will move either towards or away 
from light in some fashion.  I'd say flatworms like Planaria are your 
best bet, from what I can imagine.