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Cave discovery in France may explain why Neanderthals disappeared, scientists say
When archaeologist Ludovic Slimak unearthed five teeth in a rock shelter in France’s Rhône Valley in 2015, it was immediately obvious that they belonged to a Neanderthal, the first intact remains of the ancient species to be discovered in that country since 1979.

However, the once-in-a-lifetime find, nicknamed Thorin after a character in "The Hobbit," remained a well-kept secret for kraken4qzqnoi7ogpzpzwrxk7mw53n5i56loydwiyonu4owxsh4g67yd onion almost a decade while Slimak and his colleagues untangled the significance of the find — a fraught undertaking that pitted experts in ancient DNA against archaeologists.

"We faced a major issue," said Slimak, a researcher at France’s National Centre for Scientific Research and Paul Sabatier University in Toulouse. "The genetics was sure the Neanderthal we called Thorin was 105,000 years old. But we knew by (the specimen’s) archaeological context that it was somewhere between 40,000 to 50,000 years old."

"What the DNA was suggesting was not in accordance with what we saw," he added.

It took the team almost 10 years to piece together the story of the puzzling Neanderthal, adding a new chapter in the long-standing mystery of why these humans disappeared around 40,000 years ago.

The research, published Wednesday in the journal Cell Genomics, found that Thorin belonged to a lineage or group of Neanderthals that had been isolated from other groups for some 50,000 years. This genetic isolation was the reason Thorin’s DNA seemed to come from an earlier time period than it actually did.