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What Did Ancient Humans Actually Do all Night?

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What Did Ancient Humans Do All Night? All research and sources are linked below. RESEARCH & SOURCES ▸ Fear of Darkness, the Full Moon and the Nocturnal Ecology of African Lions. Packer et al., 2011, PLoS ONE. https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0022285 Nearly 500 lion attacks in Tanzania, peaking after the full moon. ▸ The Hadza: Hunter-Gatherers of Tanzania. Frank Marlowe, 2010, University of California Press. https://www.degruyterbrill.com/document/doi/10.1525/9780520945449/html The epeme dance on moonless nights. ▸ Natural Sleep and Its Seasonal Variations in Three Pre-Industrial Societies. Yetish, Siegel et al., 2015, Current Biology. https://digitalcommons.chapman.edu/esi_pubs/213/ Awake 3+ hours after sunset, about 6.5 hours of sleep. ▸ Our ancestors probably didn't get 8 hours a night, either. UCLA Newsroom, 2015. https://newsroom.ucla.edu/releases/our-ancestors-probably-didnt-get-8-hours-a-night-either Siegel's "myth" quote; no word for insomnia. ▸ The conquest of the dark spaces. Medina-Alcaide et al., 2021, PLOS ONE. https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0250497 Torches, stone lamps and fires tested in Isuntza cave. ▸ Animation in Palaeolithic art: a pre-echo of cinema. Marc Azéma and Florent Rivère, 2012, Antiquity. https://antiquity.ac.uk/projgall/azema332 Cave animals that seem to move in flickering light. ▸ Prehistoric pre-school. University of Cambridge, 2011. https://www.cam.ac.uk/research/news/prehistoric-pre-school Finger flutings by children as young as three, some on the ceiling. ▸ An Upper Palaeolithic Proto-writing System and Phenological Calendar. Bacon et al., 2023, Cambridge Archaeological Journal. https://www.cambridge.org/core/journals/cambridge-archaeological-journal/article/an-upper-palaeolithic-protowriting-system-and-phenological-calendar/6F2AD8A705888F2226FE857840B4FE19 Dots beside cave animals as a moon calendar. ▸ Fire and grass-bedding construction 200 thousand years ago at Border Cave, South Africa. Wadley et al., 2020, Science. https://www.science.org/doi/10.1126/science.abc7239 The oldest grass beds, on ash, with camphor. ▸ Were bed bugs the first urban pest insect? Miles, Booth et al., 2025, Biology Letters. https://royalsocietypublishing.org/rsbl/article/21/5/20250061/235967/Were-bed-bugs-the-first-urban-pest-insect-Genome Bats to humans 60,000 years ago, boom 12,000 years ago. ▸ Roger Ekirch, sleep research. https://sites.google.com/vt.edu/roger-ekirch/sleep-research "First sleep" and "second sleep" in old records. ▸ Chronotype variation drives night-time sentinel-like behaviour in hunter-gatherers. Samson et al., 2017, Proceedings of the Royal Society B. https://royalsocietypublishing.org/doi/10.1098/rspb.2017.0967 Everyone asleep at once for only 18 minutes in 220+ hours. ▸ Evidence for an emotional adaptive function of dreams. Samson, Perogamvros et al., 2023, Scientific Reports. https://www.nature.com/articles/s41598-023-43319-z Hunter-gatherer dreams end with help arriving. ▸ Moonstruck sleep. Casiraghi et al., 2021, Science Advances. https://www.science.org/doi/10.1126/sciadv.abe0465 Toba-Qom and Seattle students sleep less before a full moon. ▸ Why are there Seven Sisters? Ray Norris and Barnaby Norris, 2021. https://arxiv.org/abs/2101.09170 The Seven Sisters story may be 100,000 years old. ▸ Hearth and Campfire Influences on Arterial Blood Pressure. Christopher Dana Lynn, 2014, Evolutionary Psychology. https://doi.org/10.1177/147470491401200509 A crackling fire lowered blood pressure. ▸ Fireside Relaxation Study. Christopher Dana Lynn, University of Alabama. https://sites.ua.edu/cdlynn/firesiderelaxationstudy/ A later study did not find the same effect. ━━━━━━━━━━━━━━━━━━━━ PEOPLE & SITES MENTIONED IN THIS VIDEO ▸ Craig Packer, lion researcher ▸ Gandhi Yetish and Jerome Siegel, sleep scientists ▸ Marc Azéma, archaeologist ▸ Jess Cooney and Leslie Van Gelder, finger flutings researchers ▸ Ben Bacon, furniture restorer, London ▸ Lyn Wadley, archaeologist ▸ Lindsay Miles and Warren Booth, Virginia Tech ▸ Roger Ekirch, historian ▸ David Samson, anthropologist, poorly sleeping grandparent hypothesis ▸ Lampros Perogamvros, sleep scientist ▸ The Hadza (Tanzania), the San (Namibia), the Tsimane (Bolivia), the BaYaka (Congo) and the Toba-Qom (Argentina) ▸ Isuntza cave (Spain), Chauvet Cave and Rouffignac Cave (France), Border Cave (South Africa) ━━━━━━━━━━━━━━━━━━━━ Animation by Ink Explainer ━━━━━━━━━━━━━━━━━━━━ #AncientHumans #Prehistory #HumanHistory #Anthropology #Sleep #StoneAge #History

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