Paul McGreevy, PhD, MRCVS, has worked with and studied animals professionally for more than 20 years. He is an associate professor at the University of Sydney s Faculty of Veterinary Science, where his research focuses on the behavior and welfare of dogs and horses, and is the author of six books and more than 80 peer-reviewed articles on animal behavior. He is also the proud owner of three dogs: Wally, Neville, and Tinker.