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Humans reached icy northern Europe in time of Neanderthals

Researchers at the site in Ranis, Germany, had to get around a massive rock to find the human-made tools
Researchers at the site in Ranis, Germany, had to get around a massive rock to find the human-made tools.

Pioneering groups of humans braved icy conditions to settle in northern Europe more than 45,000 years ago, a "huge surprise" that means they could have lived there alongside Neanderthals, scientists said Wednesday.

The international team of researchers found and tools hiding behind a massive rock in a German cave, the oldest traces of Homo sapiens ever discovered so far north.

The discovery could rewrite the story of how the species populated Europe—and how it came to replace the Neanderthals, who mysteriously went extinct just a few thousand years after humans arrived.

When the two co-existed in Europe, there was a "replacement phenomenon" between the Middle Paleolithic and the Upper Paleolithic periods, French paleoanthropologist Jean-Jacques Hublin, who led the new research, told AFP.

Archaeological evidence such as stone tools from both species has been discovered dating from this period—but determining exactly who created what has proved difficult because of a lack of bones.

Particularly puzzling have been tools from what has been called the "Lincombian-Ranisian-Jerzmanowician" (LRJ) culture found at several sites north of the Alps, including in England and Poland.

One such site near the town of Ranis in central Germany was the focus of three new studies published in the journal Nature.

Hidden behind a rock

The cave was partially excavated in the 1930s, but the team hoped to find more clues during digs between 2016 to 2022.

The 1930s excavations had not been able to get past a nearly two-meter (six foot) rock blocking the way. But this time, the scientists managed to remove it by hand.

"We had to descend eight meters (26 feet) underground and board up the walls to protect the excavators," said Hublin of Germany's Max Planck Institute for Evolutionary Anthropology.

They were rewarded with the leaf-shaped stone blades seen at other LRJ sites, as well as thousands of bone fragments.

The team used a new technique called paleoproteomics, which involves extracting proteins from fossils, to determine which bones were from animals and which from humans.

Using and DNA analysis, they confirmed that the cave contained the skeletal remains of 13 humans.

The cave site is located beneath the Castle Ranis in central Germany
The cave site is located beneath the Castle Ranis in central Germany.

That means that the in the cave—which were once thought to have been made by Neanderthals—were in fact crafted by humans as early as 47,500 years ago.

"This came as a huge surprise, as no fossils were known from the LRJ before, and was a reward for the hard work at the site," said study co-author Marcel Weiss.

The fossils date from around the time when the first Homo sapiens were leaving Africa for Europe and Asia.

"For a long time we have thought of a great wave of Homo sapiens that swept across Europe and rapidly absorbed the Neanderthals towards the end of these transitional cultures around 40,000 years ago," Hublin said.

But the latest discovery suggests that humans populated the continent over repeated smaller excursions—and earlier than had previously been assumed.

A cold change

This means there was even more time for to have lived side-by-side with their Neanderthal cousins, the last of whom died out in Europe's southwest 40,000 years ago.

This particular group arrived in a northern Europe that was far colder than today, more resembling modern-day Siberia or northern Scandinavia, the researchers said.

They lived in small, mobile groups, only briefly staying in the where they ate meat from reindeer, woolly rhinoceros, horses and other animals they caught.

"How did these people from Africa come up with the idea of heading towards such extreme temperatures?" Hublin said.

In any case, the humans proved they had "the technical capacity and adaptability necessary to live in a hostile environment", he added.

It had previously been thought that humans were not able to handle such cold until thousands of years later.

But humans outlasted the Neanderthals, who had long been acclimatized to the cold.

Exactly what happened to the Neanderthals remains a mystery. But some have pointed the finger at humans for driving their extinction, either by violence, spreading disease, or simply by interbreeding with them.

More information: Jean-Jacques Hublin, Homo sapiens reached the higher latitudes of Europe by 45,000 years ago, Nature (2024). DOI: 10.1038/s41586-023-06923-7.

Stable isotopes show Homo sapiens dispersed into cold steppes ~45,000 years ago at Ilsenhöhle in Ranis, Germany, Nature (2024). DOI: 10.1038/s41559-023-02318-z ,

The ecology, subsistence and diet of ~45,000-year-old Homo sapiens at Ilsenhöhle in Ranis, Germany, Nature Ecology & Evolution (2024). DOI: 10.1038/s41559-023-02303-6 ,

Journal information: Nature , Nature Ecology & Evolution

© 2024 AFP

Citation: Humans reached icy northern Europe in time of Neanderthals (2024, February 4) retrieved 19 April 2024 from
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