Phil Zeltzman, DVM, DACVS, is a traveling, board-certified veterinary surgeon near Allentown, Pennsylvania. His professional interests include soft tissue, orthopedic, cancer, and neurosurgery. A prolific international speaker and writer for twenty-five years, he has often written about pet obesity. He writes an award-winning, free, e-mail-based newsletter read by pet lovers in all fifty states and twenty-eight countries (visit www.Dr Phil Zeltzman.com). He is a contributor to Dog Fancy, The Bark, and Veterinary Practice News. Rebecca Johnson, Ph D, RN, FAAN, is Millsap Professor for Gerontological Nursing and Public Policy at the University of Missouri. She holds a joint appointment at the College of Veterinary Medicine as the director of the Research Center for Human-Animal Interaction (visit www.rechai.missouri.edu). Author of over forty publications, she is called upon nationally and internationally to speak about human-animal interaction. In 2010 she was elected president of the International Association of Human-Animal Interaction Organizations.