The unifying theme of biology, the theory of evolution is initially explored in Chapter 11. The story of evolution unfolds through the work and contributions of Charles Darwin. Students take an interactive ride on the H.M.S. Beagle to view many of the things Darwin based his theory upon. Finally, the chapter looks at the process of natural selection and the issues Darwin initially was confronted with when he published The Origin of Species. This product uses the interactive capabilities of a computer. The chapter has embedded an end of chapter quiz, uses graphics, animations or user interactivity on almost all pages. This product is designed to provide bite-sized pieces of information in an effort to enhance the scientific literacy of our next generation, not to overwhelm them with sheer quantity of information. Chapter 11 section titles: Evolution: Change Through Time • Before Darwin • Who was Charles Darwin? • Darwin’s Voyage on the H.M.S. Beagle • Natural Selection • The Mystery of Mysteries • Checking Your Understanding. This product works both on a Macintosh or PC computer.