Just as autopsies help us solve criminal cases, technological innovations allow us to analyze ancient skeletons–revealing more about our diverse ancestors. Isotope and DNA analysis from bones and dental plaque allow us to determine skin, eye and hair color, as well as genetic ancestry and gender.

From reconstructing an ancient Neanderthal cave, to retracing an ancient woman's footprints, to decoding the famous Herculaneum scrolls, see how scientists are deciphering the past by examining traces of history that have disappeared.