In , a team of anthropologists claimed that cutmarks on a pair of 3. Key to the claim was a close analysis of the cutmarks. To start, the trio butchered a sheep carcass with sharp stone flakes and found that the cutmarks indeed resembled those found on two different Australopithecine fossil arm bones—one dating to 4. But then they looked at tooth marks from previous experiments in which researchers had captive crocodiles chomp down on sheep bones. The researchers used a high-powered microscope to compare all the different cutmarks. Yet other paleoanthropologists say the picture is even more complex than crocs versus tools.
Braun adds that even incorrect assumptions can help advance the science. Paleoanthropologists know a lot more about cutmarks now than they did 20 years ago precisely because bold claims about Australopithecine butchers thrust the research into the spotlight, he says. By Ann Finkbeiner Jun. By Jeffrey Mervis Jun. By Kai Kupferschmidt Jun. All rights Reserved. Got a tip? Juan Morrone. Tool Use in Animals. Crickette M. Neanderthal Man. Origins of Human Innovation and Creativity. Scott Elias. WTF, Evolution?! Mara Grunbaum. Evolution of Plant-Pollinator Relationships.
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The earliest stone tools in the life span of the genus Homo are Mode 1 tools,  and come from what has been termed the Oldowan Industry , named after the type of site many sites, actually found in Olduvai Gorge , Tanzania , where they were discovered in large quantities. Polished stone axes were important for the widespread clearance of woods and forest during the Neolithic period, when crop and livestock farming developed on a large scale. Game drive system Buffalo jump. Jean-Pierre Rogel. Tokyo: Springer.
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