The Oldest Human Genomes in Europe Show How an Entire Branch of Humanity Disappeared

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Around 45,000 years ago, in the extremely cold regions of Ice Age Europe, a small group of humans traveled across the frozen wilderness, wearing fur-lined cloaks over their dark skin. They hunted woolly mammoths, made unique stone tools, and may have shared stories around campfires in caves. A recent uncovering of ancient DNA has brought these long-forgotten relatives - and their short-lived existence - into sharper focus.

Archaeologists in Germany and the Czech Republic have discovered the surprising truth about early humans leaving Africa, as indicated by fossilized remains.

These genomes are the oldest known of modern humans discovered in Europe. Much like any significant scientific discovery, these genomes raise more questions than they provide answers, adding to the puzzle of when humans first left Africa and how they interacted with our distant evolutionary relatives, the Neanderthals.

For thousands of years, populations on the Asian continent left clues about their once-thriving civilizations through artifacts and oral histories. However, the challenge has been piecing together the origins and relationships of various groups, often questioned and blended over time.

In a cave in Ranis, Germany, archaeologists uncovered bone fragments from a family of six people - a mother, her daughter, and several distant relatives. The remains, analyzed by researchers at the Max Planck Institute for Evolutionary Anthropology, date back a staggering 45,000 years. They belong to a cultural group known as the Lincombian-Ranisian-Jerzmanowician, which is often shortened to LRJ.

This is where it gets really interesting. Roughly 143 miles away, researchers also sequenced the DNA from the skull of an ancient woman found in Zlatý kůň, Czech Republic. They discovered the people from Ranis and Zlatý kůň were related.

“Maybe they had a connection beforehand.”

Although these families were small in size - perhaps consisting of only a few hundred individuals, they were scattered across the vast, uninviting terrain. Their genetic uniformity suggests a history of isolation.

I'm talking about going to New York and randomly taking one person from the Bronx and another from Long Island. It would be highly unlikely that they share a common ancestor who lived within the last three generations. However, we're discussing a time much further in the past, when the situation would have been quite different.

Unlike people in Europe today, those who lived in the LRJ region didn't have genes that would have given them pale skin. Their skin remained dark, showing that they had originated from Africa relatively recently. But sadly, their time in Europe was brief. Even though they were able to survive a journey out of Africa and several generations in Europe's unforgiving wilderness, their lineage ultimately came to an end - and as a result, their DNA has not had a lasting impact on present-day populations.

The Neanderthal Connection

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People of the LRJ carried long stretches of Neanderthal DNA, indicating that their forebears had mixed with Neanderthals just 1,000 to 2,500 years ago, about 46,000 years ago. A study at the Max-Planck-Institute for Evolutionary Anthropology mentioned earlier estimated a similar timeline by analyzing Neanderthal DNA from fossils and comparing it to the genetic sequences of living individuals.

This timing narrows the window for when humans migrated from the Middle East into Europe.

"It was really amazing to see a similar date," said Priya Moorjani, a paleogeneticist at the University of California, Berkeley, who co-authored the affiliated study.

Interestingly, the people of the Lake Mungo culture had Neanderthal traits, but failed to pass down their own genetic information to future generations. Their eventual disappearance follows a similar pattern to that of the Neanderthals, who went extinct roughly 40,000 years ago.

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The Disappearing Thread of Human Heritage

The discovery of these ancient genomes completely redefines our understanding of human migration. While modern humans arrived in Australia around 65,000 years ago and possibly China 100,000 years back, the LRJ people mark a relatively late wave into Europe. It's likely that many such waves of human migration took place over the course of human history. In the end, some groups turned out to be more resilient than others.

This brings up a puzzling question: Who were the people who left behind those ancient fossils and tools in Asia and Australia?

These findings demonstrate just how vulnerable early humans were to extinction. Even relatively small populations struggled to survive, while others flourished, paving the way for the world we know today.

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