DNA From a Swiss Lake Bed Suggests Herders Reached the Alps Centuries Before Farmers
A 14-meter sediment core shows sheep and goat DNA appearing around 4,600 B.C., roughly 300 years before the first traces of cultivated grain.

A 14-meter sediment core shows sheep and goat DNA appearing around 4,600 B.C., roughly 300 years before the first traces of cultivated grain.
