Yes! Earthworms usually move head-first, but can also "crawl" backwards. Inside the head is a small brain, a mouth, "light cells" that can tell the difference in light and dark, and a "nerve cord" that can tell if the worm is touched. The head is on the end of the worm closest to the clitellum (the big patch near one end of the worm). In this picture, the head is at the top. Also, the tail is often flatter and the head is usually a little more round.
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