text: Any "egg" must as a neccessity for procreation contain diversity. Any A-sexual being can only produce a duplicate of its own species, so in either case at least one chicken must have been present otherwise no Egg could have been produced. And also since I am not aware of any stage of evolution where a species has become a-sexual, two chickens must have been present.\nAnd that last note is important as chickens are far more advanced in current evolutionary theory than say single-cell amoebas, and are regarded to have begun well-after such a-sexual life dominated.