Based on the symposium that AIBS and the Biological Sciences Curriculum Study (BSCS) held at the 2004 annual convention of the National Association of Biology Teachers, this book presents the proceedings of the two-day symposium, which featured 17 speakers and five panel sessions. The lectures are given by research scientists in evolutionary biology, and the five panel sessions are presented by educators who teach evolution at the secondary and post-secondary level in schools and to the general public in science centers.