Early humans were already using stone tips to enhance the killing power of spears at least 500,000 years ago, some 200,000 years earlier than previously thought, anthropologists said.
Source: http://www.cosmosmagazine.com/news/6173/early-humans-used-stone-spear-points-500000-years-ago
Aki Ross Alecia Elliott Alessandra Ambrosio Alexis Bledel Ali Campoverdi Ali Larter Alice Dodd Alicia Keys
