This text investigates the fundamental question of what it means to be human by examining the biological and evolutionary history of our species. The authors, Craig C. Stanford, John S. Allen, and Susan C. Anton, utilize a comprehensive synthesis of fossil evidence, genetic data, and primatological research to construct a framework for understanding human variation and adaptation. By integrating these diverse scientific disciplines, the book provides a structured overview of the mechanisms that have shaped human development over millions of years.

This work is regarded as a standard, foundational text for undergraduate students seeking a rigorous introduction to the field of biological anthropology. The framing suggests a dense, academic approach that prioritizes empirical evidence and clear, pedagogical explanations of complex evolutionary concepts.