New archaeological evidence from a cave on Turkey's Mediterranean coast hints at a surprising degree of cultural exchange between Neanderthals and early Homo sapiens. Researchers excavating the Üçağızlı II cave found a remarkable consistency in the tools and personal items used by both species, challenging long-held beliefs about their distinct cultural practices.
The cave, a 56-square-metre space, was inhabited by Neanderthals from approximately 77,000 to 59,000 years ago, followed by Homo sapiens from 59,000 to 47,000 years ago, according to tooth and jaw remains. Despite the change in inhabitants, nearly 20,000 stone artefacts recovered showed a striking similarity in technology across all layers of occupation. This suggests that the two hominin species may have co-existed for a period, or at least shared cultural influences in the region.
A particularly intriguing discovery was the shared preference for shells of the small sea snail, Columbella rustica. Around 30 examples of these shells were found throughout the deposits left by both Neanderthals and Homo sapiens. While some had broken points or holes indicating a decorative purpose, many were found intact, suggesting they were valued for an intrinsic, non-utilitarian reason by both groups. This strong preference for a specific shell type points towards a shared cultural evaluation, according to Naoki Morimoto from Kyoto University, Japan, who led the full archaeological dig at the site in 2020.
Morimoto stated that the "striking consistency" in both stone-tool technology and shell collection is difficult to explain by independent development alone. While definitive proof of direct interaction or co-existence within the cave itself remains elusive, the team proposes that regional contact, cultural exchange, or overlapping territories offer a plausible explanation for the archaeological evidence. This research, while not yet peer-reviewed, builds upon existing studies suggesting interbreeding and cultural sharing between these species in other regions like the Levant.
Professor John Gowlett from the University of Liverpool commented on the findings, noting that the relationship between Neanderthals and Homo sapiens is becoming increasingly complex. He suggested that while a strong 'us and them' distinction might have existed, this new evidence indicates it didn't necessarily translate into entirely separate material cultures or hunting patterns. Chris Stringer from the Natural History Museum in London added that interbreeding between the species has been suggested in the Levant around 100,000 years ago, and similar interactions could have occurred later in the Üçağızlı region.