At least five varieties of seed-bearing plants , such as easily cultivated sunflowers and gourds , were grown at the site , the new study says .
新的研究表明，在这块古代农田，至少曾经生长着5种种子作物，比如易于种植的向日葵和葫芦。
Unwilling to be caught up in the ancient astronaut craze , anthropologists have suggested that the tassili " roundheads " are merely ceremonial dancers or priests wearing empty gourds over their heads .
