New finds from Dikika, Ethiopia, push back the first stone tool use and meatconsumption by almost one million years and provide the first evidence that these behaviours can be attributed to Lucy's species - Australopithecus afarensis.
An international team of researchers, including Dr. Zeresenay Alemseged of the California Academy of Sciences in San Francisco (USA) and Dr. Shannon McPherron of the Max Planck Institute for Evolutionary Anthropology in Leipzig (Germany), has discovered evidence that human ancestors were using stone tools and consuming the meat and marrow of large mammals 1 million years earlier than previously documented. While working in the Afar region of Ethiopia, the Dikika Research Project (DRP) found bones bearing unambiguous evidence of stone tool use - cut marks made while carving meat off the bone and percussion marks created while breaking the bones open to extract marrow. The bones date to roughly 3.4 million years ago and provide the first evidence that Lucy's species, Australopithecus afarensis, used stone tools and consumed meat. The research is reported in the August 12th issue of the journal Nature.