France: Archaeology The Shape of the Cochlea as an Indicator of Sex
Editor: Alexander Stark
A French-South African collaboration has develop the first reliable method for sex determination, including among children and cases where DNA is missing or too altered.
Since the cochlea is among the hardest bones in the skull a new technique can determine the sex of very old fossils, even when fragmentary or immature.
Toulouse/France — The auditory section of the inner ear, or the “cochlea,” does not have the same shape from birth depending on whether one is a man or a woman. This is due to the torsion of the cochlear spiral, which differs based on gender, especially at its tip.
Until now, it was impossible to determine the sex of a child from its skeleton, while for adults this could be done reliably only from studying the pelvis, which is not always preserved. Since the cochlea is among the hardest bones in the skull — a bone that is found very frequently at archaeological sites — the newly developed technique can determine the sex of very old fossils, even when fragmentary or immature. This research was featured in an article published by Scientific Reports.
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