Christine Dixon, a student from the University of Colorado, shows an ear of corn excavated from the Mayan archaeological site of Joya de Ceren in El Salvador, Friday July 1, 2011. The ears of corn are... more 
Christine Dixon, a student from the University of Colorado, shows an ear of corn excavated from the Mayan archaeological site of Joya de Ceren in El Salvador, Friday July 1, 2011. The ears of corn are a new find at the site, which was covered by a volcanic eruption in year 630 and uncovered in 1976. (AP Photo/Luis Romero) less 
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Associated Press | Photo By Luis Romero
Fri, Jul 1, 2011 7:05 PM EDT