You probably know it by the fact that you can cut the head off a chicken, it can still run for a while, showing that just the lower part, spinal cord and body, already solve a big part of locomotion.
大家应该都知道，即使鸡的头被砍掉了 它也不会立即死亡 这个事实表明低级的脊髓和躯干 在完成运动过程中扮演了重要的角色