This volume interfaces three fields of linguistics rarely discussed in the same context. Its underlying theme is linguistic variation, and the ways in which his

Darwin's theory of evolution by natural selection was based on the observation that there is variation between individuals within the same species. This fundame

This book assesses the scientific value and merit of research on human genetic differencesâ€"including a collection of DNA samples that represents the whole

Basic text for the sophomore/junior level course in Human Variation or Human Diversity taught anthropology or biology departments. This classic introduction to