The relations between behavior, evolution, and culture have been a subject of vigorous debate since the publication of Darwin's The Descent of Man (1871). The latest volume of Perspectives in Ethology brings anthropologists, ethologists, psychologists, and evolutionary theorists together to reexamine this important relation. With two exceptions (the essays by Brown and Eldredge), all of the present essays were originally presented at the Fifth Biannual Symposium on the Science of Behavior held in Guadalajara, Mexico, in February 1998. The volume opens with the problem of the origins of culture, tackled from two different viewpoints by Richerson and Boyd, and Lancaster, Kaplan, Hill, and Hurtado, respectively. Richerson and Boyd analyze the possible relations between climatic change in the Pleistocene and the evo lution of social learning, evaluating the boundary conditions under which social learning could increase fitness and contribute to culture. Lancaster, Kaplan, Hill, and Hurtado examine how a shift in the diet of the genus Homo toward difficult-to-acquire food could have determined (or coe volved with) unique features of the human life cycle. These two essays illus trate how techniques that range from computer modeling to comparative behavioral analysis, and that make use of a wide range of data, can be used for drawing inferences about past selection pressures. As culture evolves, it must somehow find its place within (and also affect) a complex hierarchy of behavioral and biological factors."

ON THE FUTURE OF PERSPECTIVES When Patrick Bateson and Peter Klopfer offered me the editorship of Perspectives in 1992, the world of academic publishing was in one of its periodic upheavals. Subscriptions to series-even distinguished series such as Perspec tives-had been declining and individual volume prices had been rising, a trend that if continued could only result in the series pricing itself out of the market. In the course of the negotiations around the change of editors, the publishers offered a cost-cutting solution: change the production pattern to "camera ready" and elimi nate the costs of indexing and proofreading. While I could see the sense in this proposal, I was reluctant to accept it. Part of what I had always liked about the volumes in this series was that they were real books, intelligently proofread, nicely laid out, and provided with proper indexes. Thus, I in return offered a "Devil's bargain" the publisher should maintain the present quality of the series for two more volumes and make a renewed effort to advertise the series to our ethological and sociobiological colleagues, while I as the new series editor committed myself to a renewed effort to make Perspectives the publication of choice for writers who are trying to get their message out to the world intact and readers who are seeking clear, coherent, comprehensive and untrammeled presentations of authors' ideas and research programs."

ON THE FUTURE OF PERSPECTIVES When Patrick Bateson and Peter Klopfer offered me the editorship of Perspectives in 1992, the world of academic publishing was in one of its periodic upheavals. Subscriptions to series-even distinguished series such as Perspec tives-had been declining and individual volume prices had been rising, a trend that if continued could only result in the series pricing itself out of the market. In the course of the negotiations around the change of editors, the publishers offered a cost-cutting solution: change the production pattern to "camera ready" and elimi nate the costs of indexing and proofreading. While I could see the sense in this proposal, I was reluctant to accept it. Part of what I had always liked about the volumes in this series was that they were real books, intelligently proofread, nicely laid out, and provided with proper indexes. Thus, I in return offered a "Devil's bargain" the publisher should maintain the present quality of the series for two more volumes and make a renewed effort to advertise the series to our ethological and sociobiological colleagues, while I as the new series editor committed myself to a renewed effort to make Perspectives the publication of choice for writers who are trying to get their message out to the world intact and readers who are seeking clear, coherent, comprehensive and untrammeled presentations of authors' ideas and research programs."

The relations between behavior, evolution, and culture have been a subject of vigorous debate since the publication of Darwin's The Descent of Man (1871). The latest volume of Perspectives in Ethology brings anthropologists, ethologists, psychologists, and evolutionary theorists together to reexamine this important relation. With two exceptions (the essays by Brown and Eldredge), all of the present essays were originally presented at the Fifth Biannual Symposium on the Science of Behavior held in Guadalajara, Mexico, in February 1998. The volume opens with the problem of the origins of culture, tackled from two different viewpoints by Richerson and Boyd, and Lancaster, Kaplan, Hill, and Hurtado, respectively. Richerson and Boyd analyze the possible relations between climatic change in the Pleistocene and the evo lution of social learning, evaluating the boundary conditions under which social learning could increase fitness and contribute to culture. Lancaster, Kaplan, Hill, and Hurtado examine how a shift in the diet of the genus Homo toward difficult-to-acquire food could have determined (or coe volved with) unique features of the human life cycle. These two essays illus trate how techniques that range from computer modeling to comparative behavioral analysis, and that make use of a wide range of data, can be used for drawing inferences about past selection pressures. As culture evolves, it must somehow find its place within (and also affect) a complex hierarchy of behavioral and biological factors.