An Iraqi farmer harvests barley in the village of Muaibira on May 2, 2006 in Iraq. | Wathiq Khuzaie/Getty Images

Humans Started Domesticating Crops Thousands of Years Earlier Than We Thought

Genetic analysis of grains found at archeological sites shows that einkorn was domesticated as many as 30,000 years ago and barley as many as 21,000 years ago.

Robin Allaby | University of Warwick