Richard Sexton wrote:
In article ,
Elaine T wrote:

Stacey Whaley wrote:

I was wanting to get some opinions on the EcoSphere, initiated by NASA,
in which tiny creatures live confined in a glass ball with a little bit
of water, oxygen and a dead plant with which to feed on. (They are
definitely eye-catching.)


I honestly don't think shrimp have enough of a nervous system to
perceive confinement. The shrimp probably notice lack of oxygen or
food, but those are apparantly not lacking or they wouldn't live for
over a year.


I wonder if they notice nothing is trying to eat them?

If so, it's gotta be a plus for them. Of course, that assumes they have
enough of a brain to even be capable of remembering from day to day that
nobody tried to eat them the day before. ;-)

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__ Elaine T __
__' http://eethomp.com/fish.html '__