This month, how animals hibernate and evidence that muscle myosin makes its own heat in the cold, brain scans to reveal how ketamine relieves resistant depression, the way the brain changes when animals build a bond, the evolution of flu outbreaks, and how aphantasia affects autobiographical...

A problem that's been puzzling scientists for decades is the way our bodies recognise cold stimuli, and researchers at the University of Michigan have finally got to the bottom of it. They've identified the protein GluK2 acts as a sensor in our bodies for cold temperatures, and Sannia Farrukh has...