Book Review The Extended Phenotype: The Gene as the Unit of Selection.

has provided us with another insightful of evolutionary theory. The Extended Phenotype is a collection of ideas and new perspectives advocating the author’s gene’s eye view of evolution. Much of the book is de-voted to clearing up confusion and misunder-standing among evolutionary biologists and col-leagues in related disciplines such as developmental biology, ecology, ethology, and genetics. Excellent reviews are presented of kin selection, “genetic determinism, ” “adaptation-ism, ” and “fitness”. The central argument of the book concerns the unit of selection. Dawkins identifies two types of evolutionary entities: “replicators ” an