We have no idea who made the exquisite pieces. Image credit: J. Przedwojewska-Szymańska/PASI (CC BY 4.0) A remarkable collection of five pre-Hispanic clay puppets with rotating heads has been discovered in El Salvador. Aside from the expert craftsmanship that went into making the items, the ancient figurines are notable for the context in which they were found - atop the largest pyramid at the mysterious site of San Isidro. “They’re made of very, very fine clay without any obvious additives, so this is a very fine piece of art,” Dr Jan Szymański from the University of Warsaw told IFLScience. He...