Originally posted by Bang Guy
They have a collection of ganglia but nothing you could call a brain. I don't think suffering can be attributed to anything without a brain.
Just playing devils advocate here, but an earthworm has a very similar ganglian chain, which constitutes a nervous system, but as with the file clam, no neuronal mass that could be consiered a brain.
If you agree up to this point, then keep reading . . .
Take that earthworm and go fishing. See how it squirms as you pierce its flesh on the hook? Would you consider that suffering?
Again, from a neuroscientist point of view, playing devils advocate.
Justin