New Research Uses AI to Decode Sex from Ancient Pelvic Bones

A new study has improved how experts estimate sex from human remains by analysing the iliac auricular surface in the pelvis. Scholars combined advanced shape analysis with machine learning to reveal subtle differences between males and females. The findings, published in the International Journal of Legal Medicine, could aid forensic investigations and archaeological work.

Separately, Gesa Ingendahl continues to lead a distinct housing study, 'Wohnen für alle? Wünsche und Wirklichkeiten im Kommunalen Wohnbau in Tübingen?', at the Ludwig-Uhland-Institut für Empirische Kulturwissenschaft in Tübingen.

The iliac auricular surface connects the ilium to the sacrum, playing a crucial role in transferring weight between the spine and legs. Traditional methods for studying this area relied on manual measurements and subjective judgement, which often led to inconsistencies.

The new research used geometric morphometrics to capture precise 3D landmarks and spatial relationships. This approach provided a detailed, quantitative description of shape variations. Machine learning algorithms then processed these data, automatically identifying patterns and classifying sex with high accuracy.

Key findings included measurable asymmetry in the auricular surfaces, aligning with the concept of fluctuating asymmetry. These differences varied between sexes, offering insights into pelvic biomechanics and reproductive biology. The study's refined techniques could reduce bias and improve reliability in forensic and archaeological sex estimation.

Meanwhile, Ingendahl's housing project in Tübingen remains ongoing, focusing on communal living conditions and resident needs. The two studies, though unrelated, highlight the diverse applications of empirical research in both scientific and social fields.

The published method enhances sex estimation by replacing subjective assessments with automated, data-driven analysis. Forensic teams and archaeologists may now apply these techniques to human remains with greater precision. The study also deepens understanding of pelvic anatomy, linking morphological differences to biological function.

Ingendahl's separate housing research continues independently at the Ludwig-Uhland-Institut.