Plants and animals originally domesticated in the Near East arrived in Europe between 7000 and 4000 BC. Was the new technology introduced by migrants, or was it an "inside job"? How were the new species adapted to European conditions? What were the immediate and long-term consequences of the transition from hunting and gathering to farming? These central questions in the prehistory of Europe are discussed here by leading specialists, drawing on the latest scholarship in fields as diverse as genetics and IndoEuropean linguistics.