AI Article Synopsis
- Labial striations found on the anterior teeth of pre-Neandertal and Neandertal fossils are used to determine handedness, with OH-65 providing evidence of right-handedness.
- OH-65, dated at 1.8 million years ago, shows specific striation patterns indicating consistent use of the right hand during oral processing activities.
- The article suggests that as more fossils are discovered, it's likely that right-handedness will be a common trait among early hominins, similar to modern humans.
Article Abstract
Labial striations on the anterior teeth have been documented in numerous European pre-Neandertal and Neandertal fossils and serve as evidence for handedness. OH-65, dated at 1.8 mya, shows a concentration of oblique striations on, especially, the left I and right I, I and C, which signal that it was right-handed. From these patterns we contend that OH-65 was habitually using the right hand, over the left, in manipulating objects during some kind of oral processing. In living humans right-handedness is generally correlated with brain lateralization, although the strength of the association is questioned by some. We propose that as more specimens are found, right-handedness, as seen in living Homo, will most probably be typical of these early hominins.
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| http://dx.doi.org/10.1016/j.jhevol.2016.07.002 | DOI Listing |
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