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Across a flat strip of eroding sediment in Ethiopia\u2019s Afar Rift, artifacts and bones remain scattered almost where they originally fell.<\/p>\n
The site was discovered at Faro Daba, a sedimentary outcrop within Ethiopia\u2019s Afar Rift in northeastern Africa.<\/p>\n
There, archaeologist Yonas Beyene of the French Center for Ethiopian Studies (CFEE<\/a>) documented a floodplain repeatedly used by early humans.<\/p>\n Unlike many African sites that preserve fragments in caves, these layers hold open-air traces of ordinary activity across an ancient landscape.<\/p>\n That rare continuity gives the material unusual power, while also leaving key questions about human movement and behavior.<\/p>\n Anchored in a known timeline<\/p>\n Earlier dating work<\/a> had already pinned Halibee, a sedimentary member within the Dawaitoli Formation in Ethiopia\u2019s Afar Rift, to roughly 100,000 years ago by linking rock layers across the region.<\/p>\n At roughly 100,000 years, the site sits within the Middle Stone Age, an African period before migrations.<\/p>\n Older fossils from the same basin were dated<\/a> to 160,000 to 154,000 years ago, anchoring early Homo sapiens nearby.<\/p>\n What makes Halibee stand out is that it contextualizes a region already famous for bones, not just isolated skulls.<\/p>\n A workshop on the floodplain<\/p>\n More than 1,800 mapped artifacts, each larger than about half an inch, clustered across the beds with little signs of mixing.<\/p>\n Between 65% and 82% were made from basalt, a common local rock, and scattered chips show how people would have shaped their tools from local resources.<\/p>\n The occurrence of repetitive, short visits is proven, as these tools were seemingly both made and discarded during brief returns to the floodplain.<\/p>\n Because the pieces stayed in one area, the pattern showed behavior instead of a jumbled stone<\/a> scatter.<\/p>\n Clues to movement and exchange<\/p>\n Only a few tools were made from obsidian, volcanic glass that snaps into sharp edges, even though Halibee itself lacks that material.<\/p>\n Less than two percent of the assemblage used obsidian, making each piece a clue to movement or exchange.<\/p>\n Beyene also warned that vanished outcrops can fool raw-material stories, because erosion may hide certain sources.<\/p>\n Still, the imported stone remains intriguing without turning a tiny sample into a full map of trade.<\/p>\n Meeting point of food and risk<\/p>\n Animal bones placed people in a seasonally flooded wooded plain beside the ancient Awash River, where food, shade, and danger were present.<\/p>\n Monkeys, rodents, and medium-sized hoofed animals were common, while giraffes, birds, reptiles, and large carnivores appeared less often.<\/p>\n \u201cNo butchery-related, or unambiguously humanly induced bone<\/a> modifications were found,\u201d wrote Yonas Beyene, an archaeologist at the French Center for Ethiopian Studies.<\/p>\n In this animal-rich landscape, the site was most likely not a sole butchery spot, even though humans and animals kept returning there.<\/p>\n Visits cut short by seasonal floods<\/p>\n Seasonal flooding likely forced short stays, then erased traces of camps without fully scrambling the stones and bones.<\/p>\n Shade, water, and stone for tools would have drawn people back, while high water and animal traffic made every visit temporary.<\/p>\n Short, repeated use fits a mobile way of life, with groups revisiting useful patches instead of building permanent settlements.<\/p>\n Seen over time, Halibee becomes a snapshot of repeated choices rather than one dramatic event.<\/p>\n Sealed beneath sediment<\/p>\n One partial skeleton seems to have slipped quickly beneath sediment, avoiding the tooth marks and weathering common on exposed remains.<\/p>\n \u201cAvailable information suggests rapid burial without prolonged surface exposure,\u201d wrote Beyene, describing the rapidly buried individual that escaped heavy weathering and scavenging.<\/p>\n Rapid burial can happen when flood sediment seals a body fast, cutting off scavengers and slowing damage from sun and trampling.<\/p>\n Even so, the team stopped short of calling it a deliberate burial, because nearby animal<\/a> bodies can vanish quickly too.<\/p>\n Burned remains raise questions<\/p>\n Another individual survived only as a tooth and small bone pieces cracked, darkened, and broken by intense heat.<\/p>\n Burning at that temperature changes bone color and structure because heat drives out water and reshapes its mineral crystals.<\/p>\n Natural fire remains possible, yet intentional cremation would push that practice far earlier than any accepted case.<\/p>\n The evidence remains hard to pin down, leaving fire as a clue without a clear cause.<\/p>\n An interconnected landscape <\/p>\n From a smaller adult, a third partial skeleton carried tooth marks, fractures, and missing joints that fit scavenging soon after death.<\/p>\n Carnivores often target soft joints first, pulling apart a body before bones scatter across a short distance.<\/p>\n Compared with the quickly buried individual and the burned fragments, this trail shows that it was not a singular ending that dominated Halibee.<\/p>\n Within one site, there are at least three causes of death, filtered by water, fire, or animals.<\/p>\n Halibee ties tools, landscape, wildlife, and human remains into one open-air scene, not separate fragments from separate places.<\/p>\n More excavation could reveal whether these returns were local routines, wider circuits, or contributed to later journeys beyond Africa.<\/p>\n The study is published in the journal Proceedings of the National Academy of Sciences<\/a>.<\/p>\n \u2014\u2013<\/p>\n Like what you read?\u00a0Subscribe to our newsletter<\/a>\u00a0for engaging articles, exclusive content, and the latest updates.<\/p>\n Check us out on\u00a0EarthSnap<\/a>, a free app brought to you by\u00a0Eric Ralls<\/a>\u00a0and Earth.com.<\/p>\n \u2014\u2013<\/p>\n","protected":false},"excerpt":{"rendered":"Scientists have uncovered a 100,000-year-old site in Ethiopia that preserves an unusually complete record of daily life 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