Lynda DeWittLynda DeWitt is an editor in the Educational Media Division of the National Geographic Society, and has published wildlife articles in various publications. She lives in Washington, D. C. Carolyn Croll is the author/illustrator of several books for hildren and has illustrated numerous other titles, including another Let's-Read-and-Find-Out Science Book, Switch On, Switch Off by Mel Berger. She lives in Philadelphia. Read More Read Less