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THE DENISOVANS: The Human Species Found From a Single Finger | Full Documentary Analytics Table

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In 2008, a Russian team working in a cave in southern Siberia recovered a fragment of bone from the end of a child's little finger. It was the outermost joint. Smaller than a grain of rice at the wide end. It would sit comfortably on a fingernail. There is nothing diagnostic about a fragment like that. Fingertip bones are among the least informative in the whole skeleton — small, simple, with no feature that separates one kind of human from another by eye. In an ordinary excavation it would have been catalogued as human, given a number, and put in a drawer. Instead it went to a laboratory in Leipzig. The bone belonged to a girl of about thirteen. She was not a modern human. She was not a Neanderthal. She belonged to a population nobody had ever proposed, which has no type specimen in the ordinary sense, and which we still cannot properly describe anatomically. We have almost no Denisovan bones. We have their entire genome. And there is Denisovan DNA in living people right now — most of it in the islands of the western Pacific, thousands of kilometres from that cave. This film is about how a species was identified from a fingertip, what the genome says that the bones never could, and why the Denisovans are the strongest evidence that our idea of "human" was always too narrow. In this documentary you will discover: • Denisova Cave, 2008, and the fragment nobody would have looked at twice • Why ancient DNA is so hard: the clean room, the double gloves, and the damage pattern that proves a sequence is genuinely old • The mitochondrial result that looked wrong — and the nuclear genome that explained it • The family shape: Denisovans and Neanderthals split about 400,000 years ago, both from our line about 600,000 • Denisova 11 — "Denny" — a girl with a Neanderthal mother and a Denisovan father. Not a distant trace. Half. • Why the odds of finding a first-generation hybrid tell you interbreeding was not rare • ZooMS: how collagen and a mass spectrometer found a human bone among two thousand unidentified fragments • What that means for every excavation ever conducted — the bags marked "indeterminate", still sitting in stores • Sediment DNA: identifying who occupied a cave layer from a spoonful of dirt, with no bone at all • Four to six per cent Denisovan ancestry in New Guinea and Aboriginal Australia — and a fraction of a per cent across mainland Asia • At least two, possibly three, deeply distinct Denisovan populations, as different from each other as living human groups • The ghost lineage inside the Denisovan genome: an ancestor that split from the rest of us perhaps a million years ago, with no fossil and no name • The Xiahe mandible from Baishiya Karst Cave, found by a Buddhist monk in 1980 and identified by protein rather than DNA • EPAS1: the high-altitude gene carried by Tibetans today, inherited from Denisovans rather than evolved • Cobra Cave in Laos, 2022 — a Denisovan molar four thousand kilometres from the Altai, at low altitude, in the tropics • The Harbin cranium: hidden in a well for eighty-five years, named Homo longi, and quite possibly Denisovan • How methylation lets you predict a skeleton you have never seen — and what happened when the prediction met the Xiahe jaw • Why we know their range, their dates, their mixing and their altitude adaptation, and still do not know their face Every claim here is anchored to named researchers, published papers and real sites. Where the evidence is contested, this film says so. 📚 KEY SOURCES: • Krause, J. et al. — The complete mitochondrial DNA genome of an unknown hominin from southern Siberia (Nature, 2010) • Reich, D. et al. — Genetic history of an archaic hominin group from Denisova Cave in Siberia (Nature, 2010) • Meyer, M. et al. — A high-coverage genome sequence from an archaic Denisovan individual (Science, 2012) • Slon, V. et al. — The genome of the offspring of a Neanderthal mother and a Denisovan father (Nature, 2018) • Slon, V. et al. — Neandertal and Denisovan DNA from Pleistocene sediments (Science, 2017) • Brown, S. et al. — Identification of a new hominin bone from Denisova Cave using collagen fingerprinting (Scientific Reports, 2016) • Chen, F. et al. — A late Middle Pleistocene Denisovan mandible from the Tibetan Plateau (Nature, 2019) • Huerta-Sánchez, E. et al. — Altitude adaptation in Tibetans caused by introgression of Denisovan-like DNA (Nature, 2014) • Demeter, F. et al. — A Middle Pleistocene Denisovan molar from the Annamite Chain of northern Laos (Nature Communications, 2022) • Ji, Q. et al. — Late Middle Pleistocene Harbin cranium represents a new Homo species (The Innovation, 2021) • Gokhman, D. et al. — Reconstructing Denisovan anatomy using DNA methylation maps (Cell, 2019) Images: public domain and CC0 - Wikimedia Commons #Denisovans #AncientDNA #HumanEvolution #DenisovaCave #Neanderthal #Palaeogenetics #HomoLongi #Archaeology #Prehistory #LostEras

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