Born in Italy, Carlo Siracusa got his DVM from the University of Messina, Italy, and his PhD from the Autonomous University of Barcelona, Spain, defending a thesis on perioperative stress in dogs and the effect of pheromone therapy. He completed his residency in Animal Behavior at the School of Veterinary Medicine of the University of Pennsylvania, where he is currently an Associate Professor of Clinical Animal Behavior and Welfare, and the Director of the Animal Behavior Service. Carlo is board certified by the American College of Veterinary Behaviorists, of which he is the President Elect, and by the European College of Animal Welfare and Behavior Medicine. His research interests are focused on canine stress evaluation and control; canine and feline temperament evaluation; prognostic factors and treatment outcome of behavior problems; behavior and cognitive changes in dogs with medical disease.