La forma seleccionada tiene ventaja, dice el autor. Seguramente. Esto se aplica igual a individuos, familias, clanes, poblaciones, variedades y especies y por lo tanto las ideas del autor no sirven para explicar el Origen de las Especies.       175. But during the process of modification, represented in the diagram, another of our principles, namely that of extinction, will have played an important part. As in each fully stocked country natural selection necessarily acts by the selected…