Do you like eating cheese and dairy in general? Then you should know where do they come from. In fact, if today you can satisfy your passion and enjoy cheddar or mozzarella, you must thank a prehistoric fly. Neolithic farmers were actually the first to learn how bacteria and other tiny creatures could help preserving and transforming food. This is what emerges from a study published in Current Biology. This new discovery is rewriting, at least in part, the food history of man.