Take a New Look at Raven! "BIOLOGY" is an authoritative majors textbook focusing on evolution as a unifying theme. In revising the text, McGraw-Hill consulted with numerous users, noted experts and professors in the field. "Biology" is distinguished from other texts by its strong emphasis on natural selection and the evolutionary process that explains biodiversity. The new 8th edition continues that tradition and advances into modern biology by featuring the latest in cutting edge content reflective of the rapid advances in biology. That same modern perspective was brought into the completely new art program offering readers a dynamic, realistic, and accurate, visual program. To view a sample chapter, go to www.ravenbiology.comGeorge B Johnson is the author of 'Student Study Guide to accompany Biology', published 2004 under ISBN 9780072437430 and ISBN 007243743X.