Archaeologists in northern Peru have identified a 3,200-year-old mural painted on the side of an ancient adobe temple that is thought to depict a zoomorphic, knife-wielding spider god associated with rain and fertility. The mural – applied in ochre, yellow, grey and white paint to the wall of the 15m by 5m mud brick structure in the Virú province of Peru’s La Libertad region – was discovered...