Translations:Benutzer:Arian/Klett-Mini-Test/471/en

Apart from mammals and reptiles, four great groups of the animal kingdom are of eminent significance — groups whose existence permeates the village lands in a more hidden, soul-like activity. In their bodily formation they each show, in different ways, a kinship with the functional and morphological threefold nature of the human being — that is, with the head, chest, and metabolic-limb system. These four groups are worms, fishes, birds, and insects.