The workers needed a stable food supply , and the area was rich in wild species like aurochs and einkorn , one of the ancestors of domesticated wheat .
Abruptly , soon after 11000 years ago , they began to cultivate rye and chickpeas , then einkorn and emmer , two ancestors of wheat , and later barley .
Today the closest known wild ancestors of modern einkorn wheat are found on the slopes of karaca da , a mountain just 60 miles northeast of g bekli tepe .
Prehistoric people would have gazed upon herds of gazelle and other wild animals ; gently flowing rivers which attracted migrating geese and ducks ; fruit and nut trees ; and rippling fields of wild barley and wild wheat varieties such as emmer and einkorn .
