童话故事里,狗与狼的区别,通常以是否会摇尾巴来确定。那么狗尾巴为什么摇来摇去呢?狗尾巴平常的状态都比尾根部略高,因此通常是下垂的。狗尾巴的功能主要是在行动时起到保持平衡的作用。在狗的重心移动中,向左右转弯时是用尾巴调节的,实际上起到了 In fairy tales, the difference between a dog and a wolf is usually determined by whether or not to wag its tail. Then why the dog’s tail shaking? Dog’s tail state is usually slightly higher than the tail, it is usually drooping. The function of the dog tail is mainly to maintain the balance of the role of action. In the dog’s center of gravity, turning to the left and right is tail adjusted, in fact played