New Study Suggests Tools Were Used By An Earlier Human Ancestor Than Previously Believed

January 23, 2015 5:12 AM

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New Study Suggests Tools Were Used By An Earlier Human Ancestor Than Previously Believed

Studying the hand and wrist bones of an ancient human ancestor—the Australopithecus africanus—has exposed that these early species may have used primitive stone tools further back in history than we originally believed.

One piece of evidence is found the trabecular bone of the skeleton. Trabecular bone is flexible and can changes its properties, in slight ways, to better accommodate the kind of repetitive use it is exposed to. So by studying early bones we can determine if a person used a tool; that’s a simple way ...

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