Two groups of Neanderthals living just 70 kilometers apart developed distinct food preparation techniques, according to analysis of butchery marks on animal bones from caves in northern Israel.
Despite using identical tools and hunting the same prey between 50,000 and 60,000 years ago, the groups at Amud and Kebara caves left markedly different cutting patterns that suggest culturally transmitted food traditions.
The discovery provides rare insight into Neanderthal social complexity and challenges assumptions about their cultural uniformity. Researchers found that differences in bone processing cannot be explained by skill levels, available resources, or environmental pressures—pointing instead to learned behaviors passed down through generations.
Written in Stone Age Bones
The study examined 344 animal bone fragments bearing cut marks from both cave sites, using advanced microscopic techniques to analyze the precise characteristics of each incision. Both groups primarily hunted mountain gazelles and fallow deer, using similar flint tools during winter occupations of their respective caves.
However, the butchery patterns told a different story. At Amud Cave, cut marks were densely packed and less linear in shape, creating a clustered appearance with many overlapping incisions. At Kebara Cave, the marks were more widely spaced and predominantly straight, suggesting more controlled processing techniques.
“The subtle differences in cut-mark patterns between Amud and Kebara may reflect local traditions of animal carcass processing,” explained Anaëlle Jallon, PhD candidate at the Hebrew University of Jerusalem and lead author of the study. “Even though Neanderthals at these two sites shared similar living conditions and faced comparable challenges, they seem to have developed distinct butchery strategies, possibly passed down through social learning and cultural traditions.”
More Than Just Meat Processing
The research revealed additional differences that couldn’t be attributed to environmental factors. At Amud Cave, 40% of animal bones showed evidence of burning, while only 9% were burned at Kebara. The Amud bones were also more highly fragmented, potentially reflecting different cooking or storage practices.
Key findings from the analysis include:
- Cut mark density 6.5 times higher at Amud Cave compared to Kebara
- Significantly more overlapping incisions at Amud (37.3% vs. 15.2%)
- Different burning patterns suggesting distinct cooking methods
- Similar tool technologies despite different processing techniques
The researchers considered whether these differences might reflect varying skill levels or resource scarcity, but experimental archaeology indicates that cut mark patterns don’t correlate with butchering expertise. Instead, the evidence points to deliberate choices about how to process meat.
Ancient Recipes in the Making
One intriguing possibility is that the Neanderthals at Amud were treating their meat differently before butchering—perhaps drying it or allowing controlled decomposition, similar to how modern butchers age meat. Decaying meat requires more intensive processing, which could explain the denser, less linear cut marks found at the site.
“These two sites give us a unique opportunity to explore whether Neanderthal butchery techniques were standardized,” noted Jallon. “If butchery techniques varied between sites or time periods, this would imply that factors such as cultural traditions, cooking preferences, or social organization influenced even subsistence-related activities such as butchering.”
The study employed focus variation microscopy to measure cut mark characteristics at the micrometer level, revealing that while the overall shape and depth of incisions were similar—reflecting identical tool types—the patterns and density differed significantly between sites.
Cultural Complexity Unveiled
The findings add to growing evidence that Neanderthals possessed sophisticated cultural capabilities. Previous research has documented regional variations in stone tool production techniques, and this study extends that pattern to food processing behaviors.
The research also revealed spatial organization within caves, with different areas used for specific activities. At Amud Cave, the peripheral areas appeared to serve as discard zones, while central areas were used for primary butchering activities—a pattern that mirrors organization seen at Kebara.
While the study has limitations due to bone fragmentation, the researchers emphasized that future comparative analyses could help identify broader patterns of socially transmitted traditions among Neanderthal groups. The work suggests that even basic survival activities like food processing were influenced by cultural learning and group-specific preferences.
As Jallon concluded: “Future studies, including more experimental work and comparative analyses, will be crucial for addressing these uncertainties—and maybe one day reconstructing Neanderthals’ recipes.”
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