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Home»Science»12,000-year-old rock artwork hints on the Arabian Desert’s lush previous
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12,000-year-old rock artwork hints on the Arabian Desert’s lush previous

Buzzin DailyBy Buzzin DailyOctober 6, 2025No Comments5 Mins Read
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12,000-year-old rock artwork hints on the Arabian Desert’s lush previous
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The camels at Jebel Misma have been frozen in a march for 12,000 years. “They’re actually spectacular,” says paleoanthropologist Michael Petraglia. “They’re lovely, monumental.”  

A herd of the animals is reduce right into a cliff towering above the principally flat desert panorama of Saudi Arabia’s Nefud. The engravings are life-size, inscribed with about 150 different newly documented petroglyphs that each one date to between 12,800 and 11,400 years in the past, Petraglia and colleagues report September 30 in Nature Communications.

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Rock artwork has been present in Saudi Arabia earlier than, however these petroglyphs date from the Neolithic interval round 8,000 years in the past. The engravings discovered at Jebel Misma, Jebel Arnaan and Jebel Mleiha — all rock outcrops in a distant a part of the Nefud, close to its southern edge — are a lot older. The engravings may be seen for miles and had been in all probability supposed to mark territory or point out close by sources of water, says Petraglia, the director of the Australian Analysis Heart for Human Evolution at Griffith College in Brisbane.

The newly found rock artwork was discovered throughout analysis for one among Petraglia’s tasks, known as Inexperienced Arabia. The group just lately revealed proof that the area was lush and verdant at instances during the last 8 million years, indicating that the Sahara and jap desert areas had been additionally moist.

Petraglia and his colleagues assume the earliest rock engravings at Jebel Misma and the 2 different outcrops close by had been made by the primary nomadic individuals to enter the area after the Final Glacial Most, which made the area arid however ended about 19,000 years in the past. Because the area grew to become wetter, with extra rain accumulating in short-term desert lakes or “playas,” wild animals reminiscent of camels, gazelles, aurochs and ibex arrived — adopted by nomadic human hunters who relied on them for meals.

Rock artwork at Jebel Arnaan exhibits the phases of engraving. Prime left: part 1 engravings (inexperienced) beneath part 2 engravings (yellow); Prime proper: A naturalistic part 3 camel engraving (white) beneath a “stylized” engraving from part 4 (blue); Backside left: An engraved ibex from part 4 with “cartoonlike” eyes and horn (darkish blue) above a part 3 engraving of an auroch (mild blue); Backside proper: An equid (in all probability a wild ass) and its younger (blue) from part 4. Guagnin et al./Nature Communications 2025

The hunters’ engravings had been reduce into the pure darkish “varnish” that varieties on desert rocks, to show the sandstone beneath. Evaluation exhibits they had been made in 4 phases: The earliest, carved greater than 12,000 years in the past, depicted small, stylized girls, usually with accentuated curves, and had been later coated by different engravings. A second part of petroglyphs depicted bigger stylized human figures.

The gorgeous animal engravings — naturalistic in type and as much as 3 meters lengthy — date from an extended third part that ended about 11,000 years in the past. Every animal is depicted with distinctive particular person options. A fourth part consists of “cartoonish” animal depictions which can be extra stylized and characterize the evolution of the custom, the examine authors write. They notice that the final lush period resulted in Arabia about 6,000 years in the past, as soon as once more turning the Nefud into one of many driest locations on Earth.

Excavations of trenches beside the engravings unearthed stone instruments and different objects that reveal the artists had shut hyperlinks to different prehistoric peoples within the Jap Mediterranean. However the measurement and elegance of the engravings set them aside and present the origins of a brand new custom. The nomads had been “creating this monumental rock artwork, which we by no means noticed earlier than,” Petraglia says. “This can be a model new phenomenon.”

A researcher excavates a trench near the camel engravin
One of many researchers excavating a trench beneath a camel engraving at Jebel Arnaan. A “naturalistic” camel determine was engraved there in part 3 and a “stylized” engraving superimposed later, throughout part 4. Sahout Rock Artwork and Archaeology Mission

Paleoclimatologist Paul Wilson of the College of Southampton in England says the analysis by Petraglia and his colleagues exhibits how prehistoric people tailored to adjustments in local weather. “Similar to its African counterpart [the Sahara], the Arabian desert is graced by numerous prehistoric engravings and work that present … incontrovertible proof of occupation by our historic ancestors,” he says.

Archaeologist Anna Belfer-Cohen, a professor emerita on the Hebrew College of Jerusalem who research the prehistory of the area, says it is likely to be anticipated that prehistoric individuals in Arabia had been experimenting with new methods of dwelling. The work by Petraglia and his colleagues opens a brand new window right into a previous time. “It tells the story of a area that was for years terra incognita, a lot so that folks didn’t even think about exploring it,” she says. “These findings are eye-openers.”

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