KENT M. VAN DE GRAAFF is Professor of Zoology at Weber State University in Ogden, Utah, where he received his B.S. in zoology. He holds an M.S. from the University of Utah and a Ph.D. from Northern Arizona University. The author or co-author of several college textbooks, he previously taught anatomy at the University of Minnesota and Brigham Young University.

R. WARD RHEES is Professor of Zoology at Brigham Young University. He received his B.S. in pharmacy from the University of Utah and a Ph.D. in physiology from Colorado State University. He previously taught at Weber State University and was a visiting professor at the Department of Anatomy and the Brain Research Institute at the UCLA School of Medicine. He has published articles based on his research in leading scholarly journals.

PATRICIA BRADY WILHELM teaches human anatomy and zoology at the Community College of Rhode Island in Warwick. She holds a B.A. from Cornell University and a Ph.D. from Brown University, where she also previously taught comparative vertebrate anatomy and ecology. She has been a consultant to the teaching with technology program at the University of Rhode Island and has helped develop an anatomy on-line Web site.

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