Archaeologists say they were used in pits or directly in pot over 1,000 years ago
Clay balls unearthed at Mayan site probably used for cookingPrintNov. 29, 2012, 7:39 PM UTCBy msnbc.com technology & scienceArchaeologists say they were used in pits or directly in pot over 1,000 years agomsnbc.com technology & science