Get ready for more than you want to know about Spoo. The longer portion is by JMS, J. Michael Straczynski (there's that darn cz!), the creator of the series.
The entry in the Babylon 5 Encyclopaedia has this to say about Spoo:
Spoo is/are (the plural of spoo is spoo) small, white, pasty, mealy critters, rather worm-like, and generally regarded as the ugliest animals in the known galaxy by just about every sentient species capable of starflight, with the possible exception of the pak'ma'ra, who would simply recommend a more rigorous program of exercise. They are also generally considered the most delicious food in all of known space, regardless of the individual's biology, almost regardless of species, except for the pak'ma'ra, who like the flavor but generally won't say so simply to be contrary.
Spoo are raised on ranches on worlds with a damp, moist, somewhat chilly climate so that their skin can acquire just the right shade of paleness. Spoo travel in herds, if moving a total of six inches in any given direction in the course of a given year can actually be considered moving. They stay in herds ostensibly for mutual protection, but the reality is that if they weren't propped up against one another, most of them would simply fall down. They do not howl, bark, moo, purr, yap, squeak or speak. Mainly, they sigh. Herds of sighing spoo can reportedly induce unparalleled bouts of depression, which is why most spoo ranchers wear earmuffs even when it's only mildly cold, damp, wet and dreary outside. If there is any life-or-death struggle for dominance within the spoo herd, it has not yet been detected by modern science.
Spoo ranching is one of the least regarded professions known. Little or no skill is required, once you've got a planet with the right climate. You bring in two hundred spoo, plop them down in the middle of your ranch, and go back to the nearby house. Soon you've got more. When it comes time to cull out the ones ready for market (the softest, mealiest, palest, most forlorn-looking spoo of the pack), little physical effort is required since they're incapable of rapid movement without falling over (see above). They do not resist, fight, or whine; they only sigh more loudly. When spoo harvest time comes, the air is full of the sound of whacking and sighing, whacking and sighing. Even an experienced spoo rancher can only harvest for brief periods of a time, due to the increased volume of sighing, which even the sound of whacking cannot altogether erase. (also see above) Some have simply gone mad.
Spoo are the only creatures of which the Interstellar Animal Rights Protection League says, simply, "Kill 'em."
Taken from a posting by JMS to CompuServe
In addition, the two main races for whom Spoo is a delicacy, the Centauri and Narn, disagree on the best way to serve their 'national' dish. The Narn insist it is served fresh to the disgust of the Centauri who insist on it being served 'matured' at least 5 days old. This argument has caused many problems on Babylon 5 on how it should be served in the five-star Fresh Air restaurant. It is now available in both forms, and the Spoo are raised by station personnel to avoid any disputes over Centauri or Narn farming techniques.
All this for a little critter no-one would look twice at if it weren't for the taste!
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