Starosele Cave, a rock shelter in the Crimean Peninsula, has been a site of archaeological interest since 1952 but had until now yielded only post-medieval human remains. The prevailing assumption was that no Palaeolithic human fossils had been found there. However, by applying cutting-edge biomolecular analyses to an assemblage of over 150 fragmented bones, researchers from the University of Vienna uncovered a small piece, measuring just under 5 centimeters in length, that was definitively identified as human. This discovery reframes the archaeological narrative of Starosele, placing it squarely within a Palaeolithic context for the first time and providing crucial new data about human presence during the Late Pleistocene in this region.

One of the primary analytical methods employed in this research was Zooarchaeology by Mass Spectrometry (ZooMS), a novel palaeoproteomic technique that profiles collagen peptides extracted from fragmented bones. This technique operates by assessing molecular weight differences in collagen’s peptide bonds, allowing researchers to distinguish species even from minuscule and taxonomically indeterminate bone fragments. Among the sampled fragments, 93% were identified as belonging to herbivores such as horses and deer, alongside smaller quantities from mammoths and wolves. This assemblage suggests a strong emphasis on horse hunting amid the Palaeolithic populations that occupied the Crimean Peninsula. Remarkably, one fragment diverged significantly, being identified as human—a breakthrough find from this site’s faunal assemblage.

To further characterize the fragment, micro-computed tomography (micro-CT) imaging was undertaken, revealing that the bone likely originated from a human femur. The bone was subjected to ultra-refined radiocarbon dating techniques involving the latest decontamination protocols, which established an age range of approximately 46,000 to 44,000 years. This timing securely positions the bone within the Palaeolithic period, a critical era for understanding hominin evolution and interaction with environmental shifts during the Late Pleistocene. The calibrated radiocarbon date also dispels earlier assumptions that all human remains from Starosele belonged exclusively to much later periods.

The excitement within the research team was palpable when these analyses indicated the bone belonged to a Palaeolithic human. Emily M. Pigott, a doctoral researcher at the University of Vienna and lead author, recounts that this discovery occurred on the analysis of just her 46th bone via ZooMS, emphasizing the rarity and significance of such finds. The bone, named “Star 1,” extends the sparse and invaluable record of hominin fossils from the crucial period when Neanderthals were gradually being displaced by Homo sapiens across Eurasia. The genetic information preserved within this tiny specimen thus offers unprecedented views into the evolutionary dynamics of our ancient relatives.

Subsequent genomic analysis conducted by co-authors Konstantina Cheshmedzhieva and Martin Kuhlwilm revealed that the “Star 1” individual belongs unequivocally to the Neanderthal lineage. Intriguingly, this Neanderthal was genetically closest to individuals recovered from the Altai region in Siberia, a population separated by more than 3,000 kilometers from Crimea. Additional affinities were observed with Neanderthals from Europe, including remains from Croatia. This genetic evidence strongly supports scenarios of wide-ranging Neanderthal migrations and gene flow over vast distances throughout Eurasia, painting a much more interconnected picture of Neanderthal dispersal than previously recognized.

Prior to this discovery, the notion that Neanderthals primarily occupied relatively localized and fragmented habitats across Europe and western Asia was commonly held. However, the newly uncovered genetic ties from Crimea to Siberia reinforce the hypothesis that Neanderthals were capable of inhabiting, traversing, and interlinking disparate regions across the Eurasian steppes. This insight places Crimea as a critical nexus within a continental migration corridor utilized repeatedly by Neanderthals during the Late Pleistocene, suggesting complex population dynamics and potentially adaptive strategies to exploit diverse ecological zones.

Climate modeling efforts contributed crucial contextualization to this story. Researchers Elke Zeller and Axel Timmermann, leveraging palaeoclimatic and human habitat reconstructions, identified two notable climatic intervals—approximately 120,000 and 60,000 years ago—that presented favorable environmental conditions fostering Neanderthal mobility. These periods, marked by more temperate and resource-rich environments during so-called Last Interglacial phases, would have lowered migratory barriers and allowed Neanderthals to track seasonal and geographic shifts in animal herds, facilitating their long-distance movement across Eurasia. This aligns with emerging views that hominin mobility strategies were responsive to climate oscillations and resource availability.

The implications of this study underscore not only the technological advances enabling the study of tiny, fragmentary fossil remains but also the intellectual breakthroughs gained from integrative methodologies combining biomolecular approaches, advanced imaging, genetic sequencing, and environmental modeling. Senior author Professor Tom Higham highlights how this multipronged analytical framework can uncover previously hidden human fossil evidence, substantially enriching our understanding of the intricate evolutionary history of hominins. The revelation of extensive Neanderthal movement capabilities challenges decades-old perspectives that ascribed complex migration and adaptation almost exclusively to anatomically modern humans.

The discovery of the “Star 1” Neanderthal bone fragment is a pivotal contribution that reinvigorates the narrative of human evolutionary research. It speaks to Neanderthals’ resilience, adaptability, and broad geographic dispersal abilities during the twilight of their tenure as a species. Positioning Crimea as a central hub in these movements reframes Eurasian prehistoric archaeology and urges reconsideration of hominin socioecological models. As more ancient remains continue to be examined with refined technologies, the portrait of Neanderthals as isolated or regionally constrained populations will undoubtedly give way to more complex, interconnected scenarios.

Beyond providing direct evidence of Neanderthal migration, this study exemplifies the power of interdisciplinary collaboration across continents, harnessing biomolecular science, palaeoanthropology, genetics, and climatology. The combination of specialized expertise was essential in piecing together an intricate puzzle involving minuscule fossil fragments and deciphering their broader implications for human prehistory. The discovery not only enriches the paleontological record but also prompts innovative inquiry into how our ancient relatives navigated shifting landscapes and climate episodes during the Pleistocene.

With this research published in the prestigious Proceedings of the National Academy of Sciences, the field is poised for a wave of new investigations employing ZooMS and genetic analytic techniques across Eurasian fossil collections. The potential for uncovering further hidden human remains and reconstructing migration corridors opens promising vistas for understanding the complex evolutionary narrative shared by Neanderthals and modern humans alike. As technology advances, it becomes increasingly evident that our prehistoric past is far richer and more intertwined than previous generations of scholars ever imagined.

This seminal discovery from the Crimean Peninsula marks a new chapter in the study of Neanderthals, illustrating their remarkable mobility, genetic diversity, and ecological flexibility. It challenges established paradigms while enriching our knowledge of Late Pleistocene Eurasian hominin dispersals. As small fragments yield monumental insights, the legacy of “Star 1” extends across space and time, connecting ancient peoples to the broader story of human evolution.

Subject of Research: Late Neanderthal migration and genetic connections across Eurasia during the Late Pleistocene
Article Title: A new late Neanderthal from Crimea reveals long-distance connections across Eurasia
News Publication Date: 27-October-2025
Web References: Not provided
References: DOI 10.1073/pnas.2518974122
Image Credits: Prof. Tom Higham, University of Vienna

For decades, the domestication of livestock has been primarily inferred through comparative skeletal examinations, where reductions in body size and changes in skull and teeth morphology were taken as key indicators. However, these phenotypic shifts are often lagging markers that occur well after the initial phases of domestication, which are distinguished by subtle behavioral alterations rather than overt anatomical transformations. The Dartmouth-led team challenged this paradigm by extracting and analyzing dental calculus—mineralized plaque—from 32 pig molar specimens excavated at two Neolithic sites, Jingtoushan and Kuahuqiao, both nestled in a waterlogged environment conducive to exceptional organic preservation.

The mineral deposit trapped on the teeth allowed researchers to identify microscopic food residues and parasitic entities, enabling a reconstruction of the animals’ diets and living conditions. The presence of a diverse assemblage of starch granules delineated a clear shift in foraging patterns: the pigs had consumed cooked human foods, including domesticated rice and yams, as well as acorns and various wild grasses. These findings provide irrefutable evidence that wild boars were not merely scavenging in the wilderness but were closely integrated into human settlements, surviving largely on refuse or direct feeding by people. This dietary integration likely triggered significant behavioral modifications, fostering tolerance and reduced aggression towards humans.

Intriguingly, the analysis also revealed eggs of the human-specific parasite whipworm (Trichuris), found embedded in the dental calculus of half the pig specimens examined. This points to an intimate ecological relationship wherein pigs ingested human fecal matter or consumed food and water contaminated with human excreta. This discovery is pivotal in understanding the zoonotic transfer of parasites and sheds light on the co-evolution of humans and domestic animals within early agrarian communities, where increasing sedentism intensified interspecies health dynamics.

The study’s lead author, Jiajing Wang, assistant professor of anthropology at Dartmouth, explains that the domestication pathway observed here aligns with the "commensal pathway" model. In this scenario, wild boars independently ventured into burgeoning human villages attracted by abundant food waste, creating a mutualistic relationship that laid the groundwork for domestication. Over many generations, natural selection favored traits such as diminished aggression and increased sociability, traits that allowed these animals to coexist in close quarters with humans, leading ultimately to morphological modifications such as reduction in body and brain size.

Supporting this behavioral-close relationship, morphometric analyses comparing the dental structures of Jingtoushan and Kuahuqiao pig specimens revealed individuals with smaller molars resembling those of present-day domestic pigs. This morphological evidence, coupled with dietary and parasitic data, suggests an ongoing domestication process spanning both "commensal" and active "prey" pathways, where early humans may have begun selectively managing pig populations to exploit them as reliable food sources.

The study importantly clarifies the temporal and geographical contours of pig domestication in East Asia, a region that has long been suspected but lacked definitive biological proof of early domestic pig management. While rice cultivation at Kuahuqiao had been previously documented through starch residues on grinding stones and pottery, the direct evidence from pig dietary analysis stands as the first robust molecular fingerprint of animal domestication dating back to around 8,000 years ago. This timeline coincides with broader Neolithic transitions characterized by sedentism, agriculture, and profound shifts in human-environment relationships.

Beyond illuminating ancient human-animal dynamics, the findings have substantial implications for understanding the epidemiology of parasitic diseases in prehistoric communities. The direct consumption of human waste by pigs would have facilitated the transmission of parasitic worms, potentially exacerbating public health challenges in early villages. This underscores how domestication not only reshaped human economies but also their disease landscapes, highlighting a complex interplay between cultural innovations and biological consequences.

From a methodological standpoint, the application of microfossil analysis and dental calculus biomarker studies opens new avenues for archaeologists and biological anthropologists to unravel subtle behavioral thresholds in prehistoric animals. By focusing on dietary and microbiological signatures embedded in dental tissues, this interdisciplinary approach transcends the limitations of skeletal morphology alone, providing a more nuanced narrative of domestication that accounts for behavioral ecology, physiology, and zoonotic interactions.

Jiajing Wang and colleagues, including graduate student Yiyi Tang Guarini, and collaborators from Zhejiang Provincial Institute of Cultural Relics and Archaeology and Henan Museum, have collectively advanced our comprehension of prehistoric pig domestication. Their work stands as a testament to the profound insights achievable through the integration of archaeological context, molecular biology, and evolutionary anthropological frameworks.

This research not only fills a significant gap in the story of animal domestication but also emphasizes the importance of understanding human cultural evolution through the lens of animal behavior and ecology. By elucidating the subtle steps through which wild boars slowly adapted to anthropogenic environments, it rewrites the story of domestication as a protracted, complex process shaped by ecological opportunities and behavioral plasticity rather than abrupt physical modification.

The team’s findings continue to open exciting pathways for future research, suggesting that similar biomolecular investigations in other species and regions may reshape our perspectives on domestication, cohabitation, and the intertwined fates of humans and animals across millennia.

Subject of Research: Pig domestication process in Early Neolithic South China

Article Title: Early evidence for pig domestication (8,000 cal. BP) in the Lower Yangtze, South China

Web References:

• https://doi.org/10.1073/pnas.2507123122

Image Credits: Artwork by Jiajing Wang.

Keywords: Anthropology, Domesticated animals, Pigs, Archaeology