A_Visual_Comparison_of_the_Pelvis_and_Bony_Birth_Canal_Vs._the_Size_of_Infant_Skull_in_Primate_Species.png


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English: The diagram compares the size and shape of the pelvis as the infant's skull must move through it for the Chimpanzee, Australopithecus afarensis and Homo sapien sapien. This comparison is one of the pieces of evidence physical anthropologists use as evidence supporting the Obstetrical Dilemma hypothesis.
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Author ArchaeoMouse

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8 November 2015

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