The Lowly Worm

Rain drops splatter down upon the sidewalk as you hurry to school. A few steps ahead a long skinny creature makes its way across the sidewalk. It stretches out long and thin, its pointed tip probing here and there. Then it begins constricting and the wave travels down its body making the tail end pull up toward the front. Again the front end reaches out and the rhythmic stretching and constricting soon brings the little creature to the wet grass and mud on the other side. The worms we see...