This volume on paleoantropology is a welcome departure from the traditional focus on the morphology, taxonomy, and phylogeny of early hominids. It is the result of a Wenner-Gren symposium organized to better understand early hominids within an ecological and adaptive framework. . . .The editors are to be congratulated for deomonstrating the value of bringing togeter a wide variety of specialists, including geologists, ecologists, paleontologists, evolutionary theorists and hominid systematists.