Existe una gran variación entre las diferentes razas de palomas. ¿Qué nos enseña  esto acerca de la transformación de las especies? Poco o nada. Leamos sin comentar:   In the skeletons of the several breeds, the development of the bones of the face, in length and breadth and curvature, differs enormously. The shape, as well as the breadth and length of the ramus of the lower jaw, varies in a highly remarkable manner. The caudal and sacral vertebrae vary…