Integrating developments from psychology, ethology and neuroscience, this is an undergraduate introduction to cognitive processes across species. The authors merge classic studies and contemporary research to give students a full picture of the evolving field of comparative cognition. Engaging students in the discipline from its roots in animal learning and evolutionary biology through to current research, the chapters cover both controlled laboratory and comparative cross-species studies in the natural environment. This approach provides students with complementary ethological and neurobiological perspectives on cognition. Feature boxes encourage active and engaged learning, giving a deeper understanding of topics discussed in the main text. These are supported by end-of-chapter questions to check understanding and encourage wider thinking around topics. Online resources include solutions to questions in the book, advanced material, PowerPoint lecture slides and additional questions, all available at www.cambridge.org/cognition.