An accessible and thought-provoking introduction to the field of comparative psychology. Combining behavioural, psychological and biological insights, students are encouraged to make connections within and beyond psychology, while discussion of cutting-edge research stimulates students to explore the topic further. - The only up-to-date and student-oriented introductory textbook on comparative psychology. - Essential knowledge is clearly conveyed through an understanding of the mechanisms governing animal behaviour, its evolution, and its development. - Provides a comprehensive and balanced coverage of the field by combining behavioural, psychological and neurophysiological insights. - A forward-thinking introduction which not only explains the history of comparative psychology thought, but critiques the on-going research within the field. - Illustrations and images help to demonstrate key points and increase students' engagement with the topic.