nature.comVolitional social interaction prevents drug addiction in rat modelsVenniro et al. report that drug-addicted rats reliably choose contact with another rat over drugs, even when group-housed between tests. They also do not show the increase in drug craving that normally occurs during forced abstinence.
nature.comThe ancestors of most massive galaxy clustersThe study of the early stages of galaxy cluster formation and their evolutionary path is critical for testing our structure-formation models and cosmological paradigm. Recent observations have pushed the detection of ‘protoclusters’ further back in time.