HumansHow losing a bone in our noses gave us the ability to enjoy flavour Humans need all the help they can get from their senses to stop them making mistakes with their varied diet. Let's hear it for aroma and flavour that helped make them what they are, say Rob Dunn and Monica Sanchez in their fascinating book DeliciousCulture
HumansWhy insulting people's intelligence is incompatible with open debate We too often turn to insulting people’s brain power – and that closes off our ability to understand others, argues Melanie Challenger Comment