LifeMeaty puzzle: Did TB evolve to boost hungry brains? A meat diet fuelled the development of our big brain, but what happened when it ran short? We fostered a dangerous ally, say Adrian Williams and Robin DunbarOpinion
TechnologyCurved screens make our brains light up with pleasure Why are ever more curved-screen gadgets being launched? It seems bendiness has deep aesthetic appeal and will spur new materials and manufacturing methods Analysis