Uryuoms reproduce by producing an egg using something, likely secretions, from their bodies (normally, at least two uryoums are needed in order to get enough material, although there are exceptions), into which DNA from at least two parents is injected; the current record is 12 DNA donors (the resulting child "needed some serious counseling"). Not all of them have to be uryuom, either (the child mentioned earlier had three non-uryuom parents). When non-uryuom DNA is present, seyunolu (or, in English, chimeras) are produced. If the egg has both uryuom and non-uryuom DNA, the resulting being is a tulougol seyunolu (greater chimera); if there is no uryuom DNA, a roaisol seyunolu (lesser chimera) is created.