Abstract:
:Muscle attachment sites (entheses) on dry bones are regularly used by paleontologists to infer soft tissue anatomy and to reconstruct behaviors of extinct organisms. This method is commonly applied to fossil hominin hand bones to assess their abilities to participate in Paleolithic stone tool behaviors. Little is known, however, about how or even whether muscle anatomy and activity regimes influence the morphologies of their entheses, especially in the hand. Using the opponens muscles from a sample of modern humans, we tested the hypothesis that aspects of hand muscle architecture that are known to be influenced by behavior correlate with the size and shape of their associated entheses. Results show no consistent relationships between these behaviorally-influenced aspects of muscle architecture and entheseal morphology. Consequently, it is likely premature to infer patterns of behavior, such as stone tool making in fossil hominins, from these same entheses.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Williams-Hatala EM,Hatala KG,Hiles S,Rabey KNdoi
10.1038/srep28353subject
Has Abstractpub_date
2016-06-23 00:00:00pages
28353issn
2045-2322pii
srep28353journal_volume
6pub_type
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