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THREE: FORE:Now, after sunset, they filed in, thirty or so jewel-green cyclopean alligators at the end of their first day of training, waddling clumsily past the doorway and settled with a grateful, crouching squat on the leaves that served as bed and food. None were bothered by the act of sitting on the leaves: for one thing, they had no concept of dirt. In the second place, they were rather remarkably clean. They had neither sex organs, in any human sense of the word, or specific organs of evacuation: their entire elimination was gaseous. Air ducts in the room would draw off the waste products, and the Alberts never noticed them: they had, in fact, no conception of evacuation as a process, since to them the entire procedure was invisible and impalpable.