Did early humans in Europe mix more with Neanderthals than thought?

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Early Humans in Europe Interbred More with Neanderthals Than Previously Understood

Genetic sequencing of human remains dating back 45,000 years has revealed that intermixing between early modern humans and Neanderthals in Europe was more common than previously believed. Analysis of these ancient individuals indicates a significant Neanderthal ancestry, suggesting that such interactions were not isolated incidents but rather a more widespread phenomenon during that period. This finding challenges earlier assumptions based on limited evidence, such as the Oase 1 individual from Romania, which dated to approximately 40,000 years ago.
Evidence from Bacho Kiro Cave Individuals

The remains discovered in Bulgaria's Bacho Kiro cave provide substantial evidence for frequent Neanderthal admixture. Genetic analysis of these individuals showed they possessed Neanderthal ancestors ranging from five to seven generations prior to their lives. This genetic footprint strongly suggests that the initial populations of modern humans in Europe commonly interbred with Neanderthals.
A Previously Unknown Migration into Europe

Beyond the interbreeding with Neanderthals, the genetic sequencing of the Bacho Kiro cave individuals has also shed light on an undocumented migration into Europe. These individuals showed closer genetic links to present-day populations in East Asia and the Americas than to contemporary European populations. This points to a distinct group of modern humans migrating into Europe that had not been previously identified through genetic records.
Implications for Early European History

The research indicates that the early history of modern humans in Europe was dynamic and involved population turnover. The findings suggest a complex pattern of human dispersions, where some groups may have been replaced later in West Eurasia but continued to contribute ancestry to populations in East Eurasia. This challenges a simple, linear model of early European settlement and highlights a more tumultuous past involving population replacements and significant gene flow.

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Did early humans in Europe mix more with Neanderthals than thought?

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