Bees, birds, bats, fish, and dolphins possess senses that lie far beyond the realm of human experience. In this book Howard C. Hughes tells the story of these "exotic" senses. He tells not only what has been discovered but how it was discovered--including historical misinterpretations of animal perception that we now view with amusement.The book is divided into four parts: biosonar, biological compasses, electroreception, and the scents of attraction. Although the book is filled with fascinating descriptions of animal sensitivities, the author's goal is to explain the anatomical and physiological principles that underlie them. Knowledge of these mechanisms has practical applications in areas as diverse as marine navigation, biomedical sciences, and nontoxic pest control. It can also help us to obtain a deeper understanding of more familiar sensory systems and the brain in general.