As snakes have no legs, their skins wear off easily when they glide on the ground.
So like old clothes, snakes' skins need to be replaced and most of the time by a new skin that
So like old clothes, snakes skins need to be replaced and most of the time by a new skin that is bigger in size.
When a snake is ready to she'd it's skin, the old skin simply solid open and peels off with the brand new scale waiting underneath.