Translations:Benutzer:Arian/Klett-Mini-Test/530/en

Soul-openness provides for a sustained plasticity in the life processes, and these in turn give plastic form to the physical organisation — expressed perhaps most strikingly in the skeletal structure, which in the greatest variability preserves juvenile forms. The most conspicuous mark of this is the shortening of the facial skull and the smoother cranial bones, even in fully grown animals — which is a characteristic trait of the young animal. The great number of ruminant breeds carry each their own specific horn forms. In cattle and pigs, the brain is smaller by up to thirty percent in volume compared to their wild kindred; the spinal cord and the sympathetic nervous system, which directs metabolism, are correspondingly more strongly developed. The reduction in brain size concerns above all the forebrain, and signifies thereby a diminution of the sense-faculties directed toward the outer world. For domestic animals generally, what holds is the extraordinary breadth of variation in the bodily configuration of breeds within a single species — large or small, compact or elongated, thick or slender, long-legged or short, and so forth.