The first tools can be much earlier than what was previously thought, as have been discovered in Kenya several stone objects dating from 3.3 million years ago, according to a study published the British scientific journal Nature.
The sizes described in the work considerably anticipate known sources of the genus Homo, which is distinguished by making tools, among other features, and that includes humans today, although it remains to determine which species of hominid produced them. The existence of stone tools associated with genus Homo had been dated at 2.6 million years old as a result of discoveries made in Ethiopia.
In this country tools were found stone with fossil remains of one of the oldest specimens of the genus Homo, Homo habilis, belonging to the culture called olduvayense. But the lead author of the study, Sonia Harmand, West Turkana Archaeological Project shows that the unearthed at the site called Lomekwi 3, near Lake Turkana in Kenya, objects olduvayenses tools anticipate more than 700,000 years.
The collection includes anvils, stone hammers and singing the same material used for cutting and grinding.
In addition to the age of the newly discovered pieces, surpassing the tools of olduvayense culture, work shows that hominids Lomekwi area had a powerful hand grip and good control of motility, showing signs of cognitive abilities and close relatives of humans. The shape of the tools found in Kenya indicates that were used to crush all possible objects and make sharp blades force, the report says.
The authors explain that the engines arm movements and hand these actions needed to be more like those made by chimpanzees crack nuts and fruits that those who carried out the olduvayenses cultures when they use the tools.
EFE
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