Julian Vrieslander > wrote:
> (Steve Pope) wrote:
>> It must have a spinal nerve connecting its head to its body.
>> That would be the target, wherever it is...
>Crabs are invertebrates - they don't have a spine. And they don't have
>much of a brain, if any. Their nervous system is pretty simple, and the
>controlling parts of the circuitry are more distributed throughout the
>body than in vertebrates.
Correct, crustaceans are not chordates, however a pair of nerves connects
the brain down to the limbs, in a ladder-like topology, different from
the single cord a vertebrate would have.
Blunt force to something like a neck area may still work.
I have not tried it myself.
Steve