Zoology 10th Edition
Book PrefaceZoology 10th Edition
Beginning with the first outlines in 1986, we have envisioned Zoology as a general zoology textbook for use in one-semester courses. Our plan was that Zoology should be adaptable to a variety of course organizations; that it should be filled with relevant, up-to-date zoological information; and that it should not overwhelm introductory-level students with unnecessary terminology. As teachers with over 80 years of combined experience in college and university classrooms and laboratories, we know that a book is good only if it is read. Feedback from reviewers, professors, teachers, and students tells us that Zoology’s informative and friendly writing does encourage its use by students in ways that other textbooks do not. We are honored that this book has had a part in the development of students we will never know personally. We recognize that our part in the training of future zoologists and biologists is modest. A general zoology course is as good as the professors and teachers who inspire their students to delve into a book’s pages. Over the life of Zoology we have been a team of two authors, numerous editors, zoology teachers and professors, and students who have contributed to keeping this textbook alive and lively into its 10th edition. In preparing for the 10th edition of Zoology, we have taken seriously the feedback we have received. Every chapter has been carefully scrutinized, and many of the changes incorporated into the revisions summarized later in this preface are the result of reviewer, instructor, and student comments. Preparation for the 11th edition begins now, and we welcome your comments. We can be reached at the following email addresses: Stephen Miller at [email protected] and John Harley at [email protected]
Every edition of Zoology brings something new and exciting from McGraw-Hill. As authors and teachers, we are excited about the LearnSmart and SmartBook adaptive learning features that are available with this edition. Learn- Smart and SmartBook allow students to progress through chapters with greater confidence knowing that they understand concepts being studied. We have found these tools user friendly, and we encourage you to take time to investigate how they can enhance student learning in your course. More information is presented on LearnSmart and SmartBook in “Teaching and Learning Resources.”
CONTENT AND ORGANIZATION
We have maintained from the inception of this text that evolutionary and ecological perspectives captivate students. These perspectives are fundamental to students understanding the unifying principles of zoology. Chapters 1 through 6 present cellular, evolutionary, and ecological concepts that unite zoology to biology as a whole. These chapters have been updated with new population statistics, examples, illustrations, and photographs.
Major content changes in the 10th edition of Zoology reflect the changes in our understanding of animal phylogeny that have come to light in the past few years. These changes should not surprise anyone given the dynamic and vital state of affairs in modern animal phylogenetics. A comparison of the expanded table of contents from the 9th edition to that of the 10th edition will highlight some of the changes in chapters 7 through 22. Most noticeably, chapters 10 and 13 have been completely reorganized. Chapter 10 is now devoted to the smaller lophotrochozoan phyla, and chapter 13 is devoted to the ecdysozoans other than the Panarthropoda. Chapter 12 is reorganized to reflect new interpretations of phylogeny within the annelids. Chapters 14 and 15 are reorganized in recognition of the validity of the Pancrustacea. Chapters 16 and 17 are reorganized to group echinoderms and hemichordates into a single ambulacrarian chapter. In addition to organizational changes, chapters 7 through 22 contain many new photographs, newly drawn cladograms, revised illustrations, and content additions and revisions. For example, we have added more information on vertebrate teeth in chapters 18 through 22, new material on the reptiliomorphs and the basal tetrapod/reptile transition in chapter 19, and new information on human evolution in chapter 22. In previous editions, some small phyla were omitted from the survey chapters to keep the size of the book manageable. We have found a way to introduce descriptions and phylogenetic relationships of these “lesser-known phyla” without adversely affecting the book’s length. These phyla
are presented in tables at the end of chapters 9, 12, and 16, and we hope that these tables will help students understand more of the amazing diversity within the animal kingdom. Chapters 23 through 29 retain their clear, concise, systemby- system coverage of animal organ systems. These chapters contain new photographs and text revisions that illustrate comparative aspects of animal structure and function. For example, chapter 25 describes insulin production within bivalve intestines, and chapter 26 has expanded coverage of the evolution of the sinus venosus and the SA node.
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