Hi While watching Blue Planet a question arose. I would like to know if there has been any research into the various differences in the neurological and/or sensory morphology in cephalopods based on the region of the water column in which they are found. Basically, are there sensory structures and nerve-distribution patterns that seem to correlate with depth-related lifestyle? - John P.S. Yeah, I know its been a hell of a long time since I last posted. Life's been horrible. If you really want to know, please PM me. But for now, back to the science questions for me.