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  • A Neanderthal carved a geometric design in bone 51,000 years ago

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    A Neanderthal carved a geometric design in bone 51,000 years ago

    Here's more evidence that Neanderthals were as creative and cultured as us.

    A Neanderthal carved a geometric design in bone 51,000 years ago
    Leder et al. 2021

     

    During the Middle Ages, people ventured into the cave now called Einhornhohle to collect unicorn bones. It’s tempting to wonder whether those medieval cryptid hunters would be disappointed or fascinated to learn that the bones they unearthed from the cave actually belonged to ancient bison, deer, cave lions, bears, and other animals that died 50,000 years ago. Archaeologists began excavating the cave in 2017, and while cleaning and sorting their trove of non-unicorn bones, they discovered the handiwork of a long-dead Neanderthal artisan.

     

    Around 51,000 years ago, someone carved a geometric design into the second phalanx, or toe bone, of a giant deer. The carver was almost certainly a Neanderthal, based on the bone’s radiocarbon-dated age, because no one but Neanderthals lived in Europe until around 45,000 years ago. As archaeologist Dirk Leder of the Lower Saxony State Service for Cultural Heritage and his colleagues put it, Einhornhohle is “situated along the northern boundary of the world known to be inhabited by Neanderthals,” in the Harz Mountains of northern Germany.

     

    Three parallel lines cut diagonally across the surface of the bone. Another of set of parallel lines cross the first three at a more-or-less right angle; the carver was a few degrees off, but that’s still respectably precise for someone eyeballing their measurements and working with a flint blade. At the base of the bone (the end closer to the leg), the carver added four short lines, roughly parallel but not lined up quite as precisely as the others. Leder and his colleagues describe the resulting pattern as “offset chevrons.”

    Neanderthal arts and crafts

    Whatever you call the geometric design, carving it would have taken planning, effort, and a good supply of small, sharp flint blades. Leder and his colleagues can vouch for that because they tried it themselves, using cow phalanges and hand-knapped blades of Baltic flint, the stone a north German Neanderthal bone-carver would most likely have had access to. They examined the carvings under a microscope, looking for tiny tool marks that could reveal how the carver’s blade moved across the bone surface to create each line. Then they tried to replicate what they saw.

     

    Each line in the relatively simple pattern took several steps—and about 10 minutes—to carve. The whole pattern represents about 1.5 hours of work, not counting preparation time. If you want to create your own Neanderthal bone art, here are step-by-step instructions:

     

    First, boil the bone. Leder and his colleagues found that boiled bone was soft enough to carve without cracking and clean enough to firmly grip. Now, hold the edge of your blade vertically and cut across the bone with a sawing motion, which should etch the beginnings of a line into the surface. Next, hold the blade horizontally against the bone and scrape the surface, moving toward the cut you just made. That makes a long, straight cut with one steep side and one wide, shallow side. Repeat those steps in order until the engraving is about 2 mm deep. Then do the same thing nine more times.

     

    Be prepared to replace your blade every five minutes or so. “Two blades were used to make each incision, as their edges became dull within just a few minutes,” wrote Leder and his colleagues. You’ll need at least 20 flint blades for this project, which means you’ll either need to make them yourself or convince someone with the right skills to make art supplies for you.

     

    Summing all this up, the Neanderthal who etched this pattern into a deer bone 51,000 years ago wasn’t just making an idle doodle. This was a legitimate project; it took imagination to plan the design and figure out that a few individual lines would add up to a more complex pattern. It took resources and planning to assemble the tools, and it took time and effort to actually carve the pattern.

     
    Megaloceros.jpg
    Giant deer, also called Irish elk, lived across most of Eurasia during the Paleolithic, but they were rare north of the Alps at the time of the carving, 50,000 years ago.
     
    carving-diagram.png
    This diagram shows the cutting and scraping motions used to carve the lines into the bones, along with close-up views of the results.
     
    lines-angles-lengths.png
    This diagram highlights the pattern etched into the bone, the angles at which the lines intersect, and the length of each line.

    What was the point?

    Of course, we have no way to know what, if anything, the pattern of intersecting lines meant to the person who carved it; we can only speculate. Perhaps the lines were a counter, a mnemonic, or a symbol with spiritual or cultural meaning. Or perhaps someone just enjoyed carving, really liked diagonal lines, and wanted to spend some time creating something pretty. That’s a very human impulse, after all.

     

    The bone itself may offer a few clues, albeit vague ones. A deer phalanx is too small to make a useful tool, but any bone from a giant deer might have been considered valuable or important. Giant deer, now extinct, once stood about 2 meters (6 feet) tall at the shoulders and weighed between 450 and 700 kilograms (1 and 1.5 tons). The males boasted antlers about 3.5 meters (11 feet) wide.

     

    “The use of a giant deer phalanx—a very impressive herbivore—as raw material emphasizes the special character of the modified item, particularly given the paucity of giant deer at 55,000 to 35,000 years ago north of the Alps,” wrote Leder and his colleagues.

     

    Sometimes, microscopic examination of an artifact like this one can reveal faint traces of rubbing or polishing, which might suggest that someone had worn the object as a pendant or tied onto clothing. But in this case, Leder and his colleagues say it’s hard to tell if a few slight polish marks and chips are the result of wear, damage done during carving, or damage from thousands of years of being buried in the cave. Leder and his colleagues suggest one possibility, though.

     

    “The base of the phalanx, on the other hand, is suitable as a platform on which the item stands upright, with the chevrons pointing upwards,” they wrote. (Please appreciate the subtle beauty of “the base of the phalanx, on the other hand” while also noting that your faithful correspondent can take neither blame nor credit for it.)

    Credit for the artists

    But the carved deer bone from Einhornhohle clearly tells us that Neanderthals were creative, abstract thinkers who could, and did, make art.

     

    Evidence that Neanderthals could think symbolically, create art, and plan a project like this one has been piling up for the last few years. Neanderthals in Spain painted the walls of caves and made shell jewelry painted with ocher pigment around 64,000 years ago. About 50,000 years ago, Neanderthals in France spun plant fibers into thread. And in central Italy, between 55,000 and 40,000 years ago, Neanderthals used birch tar to hold their hafted stone tools in place, which required a lot of planning and complex preparation. And archaeologists have found several pieces of bone and rock from the Middle Paleolithic—the time when Neanderthals had most of Europe to themselves—carved with geometric patterns like cross-hatches, zigzags, parallel lines, and circles.

     

    The common factor in many of these finds is that they predate the arrival of our species in what was previously the Neanderthals’ world—in this case, by at least 5,000 years. “The cultural influence of Homo sapiens as the single explanatory factor for abstract cultural expressions in Neanderthals can no longer be sustained,” wrote Leder and his colleagues.

     

    Nature Ecology and Evolution, 2021 DOI: 10.1038/s41559-021-01487-z  (About DOIs).

     

     

    A Neanderthal carved a geometric design in bone 51,000 years ago

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