Browse

The processes involved in the transformation of society from Mesolithic hunter-gatherers to Neolithic farmers were complex. They involved changes not only in subsistence but also in how people thought about themselves and their worlds, from their pasts to their animals. Two sets of protagonists have often been lined up in the long-running debates about these processes: on the one hand incoming farmers and on the other indigenous hunter-gatherers. Both have found advocates as the dominant force in the transitions to a new way of life. North-west Europe presents a very rich data set for this fundamental change, and research has both extended and deepened our knowledge of regional sequences, from the sixth to the fourth millennia bc. One of the most striking results is the evident diversity from northern Spain to southern Scandinavia. No one region is quite like another; hunter-gatherers and early farmers alike were also varied and the old labels of Mesolithic and Neolithic are increasingly inadequate to capture the diversity of human agency and belief. Surveys of the most recent evidence presented here also strongly suggest a diversity of transformations. Some cases of colonization on the one hand and indigenous adoption on the other can still be argued, but many situations now seem to involve complex fusions and mixtures. This wide-ranging set of papers offers an overview of this fundamental transition.

This book presents an archaeological case of prehistoric human environmental impact: a study of ecological and cultural change from the arid south coast of Peru, beginning around 750 bc and culminating in a collapse during the Middle Horizon, around ad 900. Its focus is the lower Ica Valley — today depopulated and bereft of cultivation and yet with archaeological remains attesting to substantial prehistoric occupations — thereby presenting a prima facie case for changed environmental conditions. Previous archaeological interpretations of cultural changes in the region rely heavily on climatic factors such as El Niño floods and long droughts. While the archaeological, geomorphological, and archaeobotanical records presented here do indeed include new evidence of huge ancient flood events, they also demonstrate the significance of more gradual, human-induced destruction of Prosopis pallida (huarango) riparian dry-forest. The huarango is a remarkable leguminous hardwood that lives for over a millennium and provides forage, fuel, and food. Moreover, it is crucial to the integration of a fragile desert ecosystem, enhancing microclimate and soil fertility and moisture. Its removal exposed this landscape to the effects of El Niño climatic perturbations long before Europeans arrived in Peru. This case study therefore contradicts the popular perception that Native Americans inflicted barely perceptible disturbance upon a New World Eden. Yet, it also records correlations between changes in society and degrees of human environmental impact. These allow inferences about the specific contexts in which significant human environmental impacts in the New World did, and did not, arise.

This volume addresses the question of the speciation of modern Homo Sapiens. The subject raises profound questions about the nature of the species, our defining characteristic (it is suggested it is language), and the brain changes and their genetic basis that make us distinct. The British Academy and the Academy of Medical Sciences have brought together experts from palaeontology, archaeology, linguistics, psychology, genetics and evolutionary theory to present evidence and theories of our understanding of these issues. Palaeontological and genetic work suggests that the transition from a precursor hominid species to modern man took place between 100,000 and 150,000 years ago. Some chapters discuss what is most characteristic of the species, focussing on language and its possible basis in brain lateralization. This work is placed in the context of speciation theory, which has remained a subject of considerable debate since the evolutionary synthesis of Mendelian genetics and Darwinian theory. The timing of specific transitions in hominid evolution is discussed, as also is the question of the neural basis of language. Other chapters address the possible genetic nature of the transition, with reference to changes on the X and Y chromosomes that may account for sex differences in lateralization and verbal ability. These differences are discussed in terms of the theory of sexual selection, and with reference to the mechanisms of speciation.