Willy the Woolly Worm focuses on teaching children about ecology and the environment. Its protagonists-Sarah, Selah, Elijah, Sammy, and Lexie-are outside playing on a beautiful fall day near their home in North Carolina when they stumble upon a caterpillar. Never having seen one before, they decide it's a "woolly worm." As they admire its striking brown and black fuzzy bands, they dub the worm "Willy."

A local mountain man passing by shares in their enthusiasm and teaches them more about caterpillars and the meaning of Willy's bands-and how to tell from the grouping of brown...