Sentences with phrase «scanned hand bones»

When the team scanned hand bones from four members of A. africanus that lived in South Africa between 2 million and 3 million years ago, they found that the pattern of the trabecular bone was asymmetrical, as in modern humans and Neandertals that use tools frequently (as they also show in their study).

They also have scanned hand bones of other members of Australopithecus, including Lucy's species, A. afarensis, but the pattern of use was not preserved in that species's trabeculae.

Not exact matches

Using a high - resolution CT scan — think of it as a 3 - D X-ray — their team documented that human hand bones show increased internal density in response to certain types of stress and repetitive motion, particularly that associated with the manufacture and use of stone tools.

A new method for analyzing CT scans of fossils, however, is giving paleoanthropologists a new, more detailed look at the internal structure of hand bones, revealing how their habitual handiwork shaped their hands during life.

Genomewide Linkage Scan for Split — Hand / Foot Malformation with Long - Bone Deficiency in a Large Arab Fa

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