How Humans Evolved

How Humans Evolved, 10th Edition, by Robert Boyd, Joan B. Silk, and Kevin Langergraber, is an introductory textbook for biological anthropology and human evolutionary biology. The work introduces foundational principles in adaptation by natural selection, population genetics, and evolutionary mechanics. It establishes a broad framework for studying human biological origins, anatomical changes, and behavioral patterns.

The narrative connects foundational genetics, the modern synthesis, speciation, and phylogeny directly to primate ecology, reproductive strategies, cooperation, and cognitive complexity. It then guides readers through the fossil record, tracing primate origins, earliest hominins, early Homo, Homo erectus, and Neanderthals alongside their contemporaries. Concluding chapters examine modern Homo sapiens, human genetic variation, evolutionary behavior, and cultural evolution.

Four dedicated chapters on primates explicitly contextualize Homo sapiens within a broad phylogenetic framework. This structural approach directly supports undergraduate students, remote learners, and biological anthropology instructors navigating introductory university courses.