If, however, we suppose any descendant of A or of I to have become so much modified as to have lost all traces of its parentage in this case, its place in the natural system will be lost, as seems to have occurred with some few existing organisms.
Hala ere, suposatzen badugu A edo I-ren ondorengo bati beronen senidetasun-aztarna guztiak galtzeraino eraldatzea egokitu zaiola, kasu honetan galdu eginen du sistema naturalean zuen lekua, eta horixe gertatu zaie, dirudienez, bizirik dirauten organismo banakaren batzuei.