Researchers found that our ancestors used various stone tools to grind and pulp food to extract starch for consumption.

Researchers extract plant residues from ancient bedrock metates, revealing insights into early diets and traditional plant ...

A mano is a hand-held stone tool used with a metate to grind and pulverize food materials from plants and animals. The metate is a large, flat piece of stone or a depression ground into a bedrock ...

Microscopic plant residues found on bedrock metates offer new insights into the diets and cultural practices of ancient Indigenous communities in the American West. The mortar, pestle, and cutting ...