The fascination is generated by a natural inquisitiveness to ward animals. The Challenge is being introduced to the vast amount of information in a general zoology text Animal Diversity investigates the core of zoology within a realistic framework. This text presents a survey of the animal kingdom with emphasis on diversity, evolutionary relationships, functional adaptations and environmental interactions. It is tailored for the restrictive requirement of a one semester or one- quarter course and is appropriate for both conscience majors as well as science majors.