HumansWhy are we good and evil? A single quality may be at the root of it The human capacity for both good and evil has long mystified philosophers. Evolutionary biology suggests they are both offshoots of one of our oddest character traits Features
HumansPiles of animal dung reveal the location of an ancient Arabian oasis Analysis of fossilised faeces from rock hyraxes shows that the extremely dry area of Wadi Sana in Yemen was once a lush oasis News