The ejaculatory duct which opens on the ninth abdominal sternum in the adult male arises in the tenth abdominal embryonic segment and subsequently moves forward.
The whole body moves forward slowly, always advancing in the swine general direction in which they originally started, but following more or less the course of the great valleys.
Another commonly received axiom was that no body could be affected by more than one movement at one time, and it was thus supposed that a cannon ball, or other projectile, moves forward in a right line until its first impulse is exhausted, when it falls vertically to the ground.
I loved you, but I have orders from Arakcheev and will kill the first of you who moves forward.
You may even notice a pattern of hair loss that starts at the head and moves backward, or at the tail and moves forward.