Human variation in the shape of the birth canal is significant and geographically structured

Proceedings of the Royal Society B Vol/Iss. 285(1889) The Royal Society Publishing Published In Pages: 1-9
By Betti, Lia, Manica, Andrea


There is less phenotypic diversity of the female birth canal with greater distance from sub-Saharan Africa.


The finding offers strong evidence of the effect of neutral evolutionary processes in shaping canal variation.


Test NameSupportSignificanceCoefficientTail
Mantel TestSupportedp < 0.001R-squared = 0.44UNKNOWN


Variable NameVariable Type OCM Term(s)
Phenotypic Diversity AssociationAnthropometry
Distance from sub-Saharan Africa AssociationLocation