How and why species multiply: the radiation of Darwin's finches.

Princeton: Princeton University Press, 2008.
Octavo, dustwrapper, 218 pp. colour photographs, line drawings.

Princeton Series in Evolutionary Biology. Explains the origin and evolution of species through the study of the finches. This title traces the evolutionary history of fourteen different species from a shared ancestor. It shows how repeated cycles of speciation involved adaptive change through natural selection on beak size and shape, and divergence in songs. Also available in paperback [stock id 32815].