It is the first conclusive evidence of use of stone implements in human sacrifice. Experts in Mexico have found blood cells and fragments of muscle, tendon, skin and hair on 2,000-year-old stone ...

Ever had a headache so big, you felt like drilling a hole in your head to let the pain out? In Neolithic times, trepanation – or drilling a hole into the skull – was thought to be a cure for ...

Yahoo Soccer is powered by OneFootball, the ultimate destination for news, live matches, scores, highlights, and more. MEXICO CITY (AP) — Traces of blood and fragments of muscle, tendon, skin and hair ...

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MEXICO CITY - Traces of blood and fragments of muscle, tendon, skin and hair found on 2,000-year-old stone knives have given researchers the first conclusive evidence that the obsidian blades were ...

MEXICO CITY – Traces of blood and fragments of muscle, tendon, skin and hair found on 2,000-year-old stone knives have given researchers the first conclusive evidence that the obsidian blades were ...

MEXICO CITY – Traces of blood and fragments of muscle, tendon, skin and hair found on 2,000-year-old stone knives have given researchers the first conclusive evidence that the obsidian blades were ...

MEXICO CITY — Traces of blood and fragments of muscle, tendon, skin and hair found on 2,000-year-old stone knives have given researchers the first conclusive evidence that the obsidian blades were ...

03 May 2012 • 6:21am The acropolis at Cantona, Puebla, Mexico Credit: Photo: Alamy Mexico's National Institute of Anthropology and History said the finding clearly corroborates accounts from later ...