People were storing grain long before they learned to domesticate crops, a new study indicates. A structure used as a food granary discovered in recent excavations in Jordan dates to about 11,300 years ago, according to a report in Tuesday's edition of Proceedings of the National Academy of Sciences.

That's as much as a thousand years before people in the Middle East domesticated grain, the research team led by anthropologist Ian Kuijt of the University of Notre Dame said.

Remains of wild barley were found in the structure, indicating that the grain was collected and saved even though formal cultivation had not yet developed.