From lemurs to apes to human beings, primates are unique among mammalsfor example, our brains are large compared to our size. Our complex interactions, intricate social structures, and extensive range of emotions allow us to adapt and thrive in diverse habitats around the globe. In this volume, readers are invited into the many domains of these extraordinary creatures to discover the incredible diversity of primate species. Readers will also learn about the long history of human beings, from our earliest ancestors, the australopiths, to the homo sapiens of today.