The paintings looked so fresh that there were initial doubts about their authenticity, but this picture has a layer of calcite and concretions over it that take thousands of years to grow.
PInturak hain berriak ziruditen ezen hasieran egiazkoak ote ziren zalantzak sortu ziren. Baina irudi hau kaltzita eta sedimentuz estalia dago eta milaka urte behar ditu eratzeko.