Abstract：
:Studies of morphological integration and modularity, and of anatomical complexity in human evolution typically focus on skeletal tissues. Here we provide the first network analysis of the musculoskeletal anatomy of both the fore- and hindlimbs of the two species of chimpanzee and humans. Contra long-accepted ideas, network analysis reveals that the hindlimb displays a pattern opposite to that of the forelimb: Pan big toe is typically seen as more independently mobile, but humans are actually the ones that have a separate module exclusively related to its movements. Different fore- vs hindlimb patterns are also seen for anatomical network complexity (i.e., complexity in the arrangement of bones and muscles). For instance, the human hindlimb is as complex as that of chimpanzees but the human forelimb is less complex than in Pan. Importantly, in contrast to the analysis of morphological integration using morphometric approaches, network analyses do not support the prediction that forelimb and hindlimb are more dissimilar in species with functionally divergent limbs such as bipedal humans.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Diogo R,Molnar JL,Rolian C,Esteve-Altava Bdoi
10.1038/s41598-018-25262-6subject
Has Abstractpub_date
2018-05-02 00:00:00pages
6885issue
1issn
2045-2322pii
10.1038/s41598-018-25262-6journal_volume
8pub_type
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