A researcher gathers breadcrumbs at an excavation site in Jordan. The 14,000-year-old crumbs suggest that ancient tribes were quite adept at food-making techniques, and developed them earlier than we had given them credit for.

A researcher gathers breadcrumbs at an excavation site in Jordan. The 14,000-year-old crumbs suggest that ancient tribes were quite adept at food-making techniques, and developed them earlier than we had given them credit for.