Consider the Lobster: 2000s Archive : gourmet.com

DFW on edible aquatic cockroaches (er, lobsters).

Lobsters do not, on the other hand, appear to have the equipment for making or absorbing natural opioids like endorphins and enkephalins, which are what more advanced nervous systems use to try to handle intense pain. From this fact, though, one could conclude either that lobsters are maybe even more vulnerable to pain, since they lack mammalian nervous systems’ built-in analgesia, or, instead, that the absence of natural opioids implies an absence of the really intense pain-sensations that natural opioids are designed to mitigate. I for one can detect a marked upswing in mood as I contemplate this latter possibility: It could be that their lack of endorphin/enkephalin hardware means that lobsters’ raw subjective experience of pain is so radically different from mammals’ that it may not even deserve the term pain. Perhaps lobsters are more like those frontal-lobotomy patients one reads about who report experiencing pain in a totally different way than you and I. These patients evidently do feel physical pain, neurologically speaking, but don’t dislike it—though neither do they like it; it’s more that they feel it but don’t feel anything about it—the point being that the pain is not distressing to them or something they want to get away from. Maybe lobsters, who are also without frontal lobes, are detached from the neurological-registration-of-injury-or-hazard we call pain in just the same way. There is, after all, a difference between (1) pain as a purely neurological event, and (2) actual suffering, which seems crucially to involve an emotional component, an awareness of pain as unpleasant, as something to fear/dislike/want to avoid.