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☆ Human bones unearthed from a German cave have altered the timeline of ancient human history
▼ + stars: | 2024-02-12 | by ( Ellyn Lapointe | ) www.businessinsider.com time to read: +7 min

This led them to Ilsenhöhle cave in Ranis, Germany, one of several sites across Northwestern Europe where LRJ artifacts have been found. AdvertisementMining ancient DNAWhen they excavated the cave, the researchers uncovered more than just LRJ artifacts — they came upon tiny bone fragments, too. AdvertisementTo that end, they extracted DNA, which confirmed the bones belong to Homo sapiens, providing strong evidence that they were responsible for the LRJ artifacts. According to their data, Homo sapiens were present in Ranis 47,500 years ago — thousands of years earlier than previously thought. Geoff M. SmithQuestions remain about how warm-weather-adapted Homo sapiens survived such a dramatic transition.

Persons: —, Josephine Schubert, sapiens, ”, Jean, Jacques Hublin, Hublin, Tim Schüler, Max Planck, ” Hublin, Dorothea Mylopotamitaki, Homo sapiens, Marcel Weiss, “ It’s, sapien, Geoff M, Smith, Geoff Smith, “ Organizations: Service, Business, Burg, College of France, Max, Max Planck Institute, University of Kent Locations: Ranis, Europe, Germany, Northwestern Europe, Western Europe, Africa, Scandinavia, Siberia

☆ What old bones reveal about the earliest Europeans
▼ + stars: | 2024-02-01 | by ( Katie Hunt | ) edition.cnn.com time to read: +7 min

Modern humans, or homo sapiens, weren’t previously known to have lived as far north as the region where the tools were made. “The Ranis cave site provides evidence for the first dispersal of Homo sapiens across the higher latitudes of Europe. It also shows that Homo sapiens, our species, crossed the Alps into the cold climes of northern and central Europe earlier than thought. Using the same technique, the team also managed to identify human remains among bones excavated during the 1930s. However, the protein analysis was only able to identify the bones as belonging to hominins — a category that includes Homo sapiens and Homo neanderthalensis, or Neanderthals.

Persons: weren’t, ”, Jean, Jacques Hublin, Max Planck, Marcel Weiss, Friedrich, “, hominins, neanderthalensis, Elena Zavala, ” Zavala, denning, Dorothea Mylopotamitaki “, Sarah Pederzani, William E, Banks, ” Banks, wasn’t Organizations: CNN, Max, Max Planck Institute, Alexander University Erlangen, Evolutionary Anthropology, University of California, University of La, University of Bordeaux Locations: Europe, Ranis, Germany, France, Paris, Leipzig, Moravia, Poland, British, Nürnberg, Berkeley, Siberia, Eurasia, University of La Laguna, Spain, “

☆ Night owls may die younger, but more than sleep is to blame
▼ + stars: | 2023-06-16 | by ( Sandee Lamotte | ) edition.cnn.com time to read: +6 min

A 2022 study found night owls were more sedentary, had lower aerobic fitness levels, and burned less fat at rest and while active than early birds. Night owls were also more likely to be insulin-resistant, meaning their muscles required more insulin to be able to get the energy they need, the study showed. Studies have revealed night owls may take more risks and are more likely to skip breakfast and eat more later in the day. Night owls also have higher levels of visceral body fat in the abdominal region, a key risk factor for type 2 diabetes and heart disease. “The strongest reset for the circadian system is bright light,” Zee said.

Persons: ”, Christer Hublin, Bhanu Prakash Kolla, ” Kolla, Phyllis Zee, Zee, ” Zee Organizations: CNN —, Finnish Institute of Occupational Health, Center for Sleep Medicine, Mayo Clinic, Center, Northwestern University Feinberg School of Medicine, CNN, Northwestern Locations: Helsinki, Rochester , Minnesota, Chicago

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