EarthPetrified rocks sent back by visitors who stole them from park These chunks of ancient petrified trees proved irresistible to light-fingered visitors. But was it guilt or a mystical curse that prompted their return? Regulars
HumansWhy are religions so judgemental? Ask evolution The rise of moralising religions like Christianity can be explained by evolution – and so can their eventual downfall, says evolutionary psychologist Nicolas BaumardFeatures