# Ancient Homo Naledi Fossils Reveal Potential Female-Only Burial Site Protein analysis of ancient tooth enamel suggests a mysterious, sex-specific burial practice. - **Source:** [ScienceDaily – Top](https://www.sciencedaily.com) - **Published:** 2026-11-11 - **Topic:** [science](https://brifing.si/c/science) - **Original article:** - **On Brifing:** https://brifing.si/s/ddb14394-0c3a-49f2-b99b-f69f5c922cae ## Discovery in Rising Star Cave Scientists exploring South Africa's Rising Star Cave system have uncovered evidence suggesting an extinct human relative, Homo naledi, may have utilized an exclusively female burial site. This finding, published in the journal Cell, marks a significant moment in paleoanthropology, potentially identifying the earliest known burial location reserved for one sex by a non-human species. ## Analyzing Ancient Protein Fragments To investigate the lack of physical variation among fossils, researchers analyzed proteins from 23 teeth belonging to at least 20 individuals. By using gentle acid etching, the team successfully recovered tiny peptide fragments from fossilized enamel. This non-destructive technique allowed scientists to extract biological data while preserving the integrity of the valuable ancient remains. ## Absence of Male Genetic Markers The research team specifically searched for Amelogenin-Y, a protein produced by a gene on the male Y chromosome. Surprisingly, the analysis revealed no evidence of this male-specific marker in any of the samples. Specialists at the University of York confirmed the proteins were genuinely ancient and not the result of modern contamination. ## Implications for Social Customs If the Dinaledi Chamber was intentionally used only for females, it suggests surprisingly elaborate social customs among Homo naledi. Such practices might indicate symbolic burial traditions previously thought to be exclusive to Homo sapiens. This discovery challenges existing assumptions about the cognitive and social complexity of our ancient human relatives living long ago. ## Alternative Genetic Explanations Researchers caution that an all-female site is not the only interpretation of the evidence. If the population lived in extreme isolation, the gene responsible for Amelogenin-Y could have undergone a mutation or disappeared entirely. Under this scenario, some individuals could be male despite the absence of the protein marker typically used for identification. ## Tooth Enamel as Biological Vault Tooth enamel serves as an ideal carrier of genetic information from deep time because it is the hardest tissue in the human body. It shields proteins from environmental contamination for hundreds of thousands of years. This study represents the largest collection of individuals from an extinct hominin species ever examined using ancient protein analysis. ## Refining Evolutionary Understanding Homo naledi lived approximately 335,000 to 241,000 years ago and has fascinated scientists since its 2013 discovery. The species uniquely combined primitive features resembling apes with characteristics associated with modern humans. This new protein-based evidence provides a fresh perspective on how these individuals lived, organized their communities, and treated their deceased members. ## Future Research and Significance As investigations continue, these findings could reshape our understanding of the social lives of ancient human species. The ability to recover proteins from such old fossils demonstrates that dental remains can reveal clues that bones alone cannot provide. This methodology opens a new window into the biology and culture of our ancestors. ## Sources covering this story - https://www.sciencedaily.com/releases/2026/11/261110042558.htm — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._