After years of disagreements bordering on open hostility between the social and life sciences, there appears to be encouraging signs of reconciliation???a shift in terrain where both ???sides??? of the erstwhile dispute are questioning their very premises. Biosocial Matters: Rethinking the Sociology–Biology Relations in the Twenty–First Century features a collection of readings from scholars on the vanguard of a reframing of biology/society debates within the sociological disciplines. Posing the question of whether a new biosocial terrain is indeed emerging, contributors explore ways this shift may contribute to a ???revitalization??? of sociology???and the biological imagination as well. Initial readings frame the battle lines through theoretical and historically–oriented contributions that reveal present renegotiations of the biological/social boundaries. Highlights include Evelyn Fox Keller rethinking the relation between the natural and the human sciences, Eva Jablonka writing on cultural epigenetics, Hannah Landecker on the notion of signal, Tim Newton on the turn to biology, and Steve Fuller on the organism. A final section focuses on in–depth analyses of epigenetics and neuroscience, two key frontiers in current sociology/biology debates. Readings include Des Fitzgerald, Nikolas Rose and Ilina Singh on the 'neuropolis', John Bone on the nature and structure of neurosociology???s promise, and Lisa Blackman on the challenges of new bio/psycho/sociologies. Pioneering and timely, Biosocial Matters offers illuminating insights into the long–overdue realignment between nature and sociology in the emergent decades of the twenty–first century.