This book explores the biology, behaviour and health disorders of dogs. Topics discussed include chronic valve disease in dogs; Canine Leishmaniosis; dogs as the reservoirs and transmitters of the rabies virus; dog bites to the external genitalia in children; understanding the human gaze in dogs; strategies for dog rabies control in Bolivia; diagnosis of Brucella Canis by polymerase chain reaction and a study on cardiac enzymes in heart worm infection in dogs.