Excavated more than 100 stone tools oldest in Kenya

Hotnewstoday360: A team of researchers at the American anthropological announced discovered stone tools in Kenya dating back 3.3 million years ago. This finding helps us better understand the lives of human ancestors.

According to information published in the journal Nature (Nature) 20/5, this team of scientists has discovered all 149 stone tools were abrasive and rude processed into materials excavated features or type in Nachukui dam, a secluded area in the bush lands west of lake Turkana in northwestern Kenya.

Based on the results of chemical analysis argon isotopes obtained from samples of stone tools located on the volcanic ash layer, they have discovered the amazing thing is one of those tools dating back 700,000 shares year compared to the most ancient tools found so far, is in the period of Homo, the ancestors of modern humans.

Sonia Harmand, an archaeologist from the University of Stony Brook, US, found the stone tools in an excavation in the Lomekwi 3, west of Lake Turkana, Kenya. We have about 3.3 million years dating

Harmand et accessible archaeological sites since 2011. Up to now, they have excavated a total of 20 pieces of stuff in the sediment below the surface and 130-piece tool on the ground. "The tool is created deliberately. They are not the result of fortuitous stone cracks", IB Times quoted Harmand said.

If the stone tools 3.3 million years old actually, they can exist long before the emergence of Homo spent 2.8 million years ago. Harmand believes the tool on by either like apes or australopithecines created Kenyanthropus neck.

In particular, the researchers confirmed findings also help refute the theory so long that Homo is the first known tool making. The processing tools, such as engine ignition or agriculture, is considered a milestone in the process of human evolution.

Thanks to the advent of these tools, humans evolved to hunt animals are protein-rich food source, thus helping to enhance the development ability of the brain thinking and profound as input important in the evolution of modern humans.