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“This is a momentous and well-researched discovery,” paleoanthropologist Bernard Wood, a professor of human origins at George Washington University, who was not involved in the study, said in a statement.

“I have seen some of these artifacts in the flesh, and I am convinced they were fashioned deliberately.” Analysis of carbon isotopes in the soil and animal fossils at the site allowed the scientists to reconstruct what the vegetation there used to be like.

The 3.3-million-year-old stone artifacts are the first direct evidence that early human ancestors may have possessed the mental abilities needed to figure out how to make razor-sharp stone tools.

The discovery also rewrites the book on the kind of environmental and evolutionary pressures that drove the emergence of toolmaking.

Stone blades likely helped ancient humans get food by helping them cut meat off the carcasses of animals, given how there was then less food such as fruit to be found in the forest.

However, these findings suggest that Lomekwian stone tools may have been used for breaking open nuts or tubers, bashing open dead logs to get at insects inside, or maybe something not yet thought of.

“We were not surprised to find stone tools older than 2.6 million years, because paleoanthropologists have been saying for the last decade that they should be out there somewhere,” Harmand said.In diesen Labs kommen 'creative coders' zusammen, die sich intensiv mit Übersetzungen von Choreografien und Tanz in digitale Formen auseinandersetzen.Außerdem unterstützen wir die fortlaufenden Forschungen der International Education Workgroup.“The idea was that our lineage alone took the cognitive leap of hitting stones together to strike off sharp flakes and that this was the foundation of our evolutionary success.” However, there were hints of primitive tool use before .In 2009, researchers at Dikika, Ethiopia, dug up animal bones nearly 3.4 million years old that had slashes and other cut marks, evidence that someone used stones to trim flesh from bone and perhaps crush bones to get at the marrow inside.Bestellen Sie unseren Newsletter, um auf dem Laufenden zu bleiben.