Encyclopedia of evolution / edited by Mark Pagel. This link opens in a new window
"A comprehensive guide to the essentials of evolutionary biology, these entries by leading experts survey essential concepts and theories, present methods, models and findings, and discuss both the history of the field and current controversies. Readers will find brief treatments on discrete concepts and individuals to illuminating lengthy essays by towering figures in the field. Topics include: Darwin, natural selection, human origins, behavioral ecology, diversity, mathematical models, and cell and developmental biology. Special essays include Stephen Jay Gould's 'Macroevolution' and Jane Goodall and Elizabeth Vinson-Lonsdorf on 'Culture in Chimpanzees'"--Home page.