A draft of your family tree
In 2010, the journal Science published the first draft sequence of the Neanderthal genome, and the main ingredients came from this cave. An international team led by geneticist Svante Pääbo at the Max Planck Institute for Evolutionary Anthropology used powder drilled from three small bone fragments found here—Vi33.16, Vi33.25, and Vi33.26—to map the genetic code of Homo neanderthalensis. The results confirmed what some anthropologists had long suspected: modern non-African humans inherited between 1% and 4% of their DNA from Neanderthals. This was the first definitive genetic proof of interbreeding between the two human species.
The exceptional preservation of the ancient DNA, then estimated to be around 44,000 years old, is attributed to the cave's stable and cool temperatures. In 2017, a much more complete, high-coverage genome was sequenced from another fragment from the cave, Vindija 33.19, belonging to a female Neanderthal who lived about 52,000 years ago. This more detailed sequence allows scientists to identify specific Neanderthal-derived alleles in modern human populations, linking them to traits like lipid metabolism, cholesterol levels, and even schizophrenia. The data from Vindija 33.19 also suggested that Neanderthal populations were small and isolated.
The people of the cave
Systematic excavations at Vindija Cave, a large chamber 50 meters long and 20 meters high, began in 1974 under the direction of Mirko Malez. The site contains 13 distinct stratigraphic layers, with the Neanderthal remains concentrated in Layer G. Initially, dates as recent as 28,000 years ago suggested these were some of the last surviving Neanderthals, implying a long period of overlap with modern humans in Europe. Improved dating techniques using more robust methods to eliminate contamination have pushed the age of the Vindija Neanderthals back to older than 44,000 years. This makes a direct interaction with modern humans at this specific location less likely.
The Vindija fossils show interesting physical traits. Compared to "classic" Neanderthals, they are somewhat more delicate or "gracile." They possess thinner, less prominent brow ridges, smaller faces, and more defined chins. These features have fueled discussions about Neanderthal diversity and evolution in their later periods. The stone tools found with them are predominantly from the Mousterian industry, typical of Neanderthals, though some finds have sparked debates about potential influences from the Aurignacian tool culture associated with modern humans.