and Terms of Use. A new study suggest that ancestors of all three ancient groups mixed at least twice with an even older 'ghost' lineage of extinct hominins called 'Denisovans'. Vol. What does the Covid-19 vaccine news mean? Your opinions are important to us. Subscribers, enter your e-mail address to access the Science News archives. If further research confirms that age estimate, it raises the likelihood that Denisovans survived on the Tibetan Plateau long enough to encounter the first humans to reach those heights as early as 40,000 years ago. Read all news including political news, current affairs and news headlines online on Denisovan today. One of the biggest questions had been over their appearance, with no full sketches of the Denisovan drawn up. Like Neanderthals, Denisovan population intermixed with modern humans as they dispersed into Asia. Denisovan mitochondrial DNA extracted from sediment layers in Baishiya Karst Cave on the Tibetan Plateau indicates that these humanlike folk inhabited the high-altitude site roughly 100,000 years ago and again around 60,000 years ago, say geoarchaeologist Dongju Zhang of Lanzhou University, China, and her colleagues. Your email. New Denisovan DNA expands diversity, history of species Phys.org 18:07 29-Oct-20 Denisovan DNA in the genome of early East Asians Max Planck Society 18:03 29-Oct-20 view more headlines He writes about psychology, anthropology, archaeology and mental health issues. Overall, the new findings suggest “that Denisovan populations were widespread in eastern Eurasia and had adapted to the Tibetan Plateau for a long time,” Zhang says. Hawks, John, The Denisova genome FAQ. Meet NASA's latest Mars Rover: Will Perseverance find life in 2021? Denisovan remains were discovered in 2008 and human evolution experts have become fascinated with the group that went extinct around 50,000 years ago. It’s possible Denisovans or Neanderthals actually crafted the relatively sophisticated items. Denisovan ancestry and population history of early East Asians. This suggests that the Denisovans may have evolved adaptations to high altitude, much like modern Tibetans. They also appeared to have no chin. If confirmed, this is a great example of how intermixing with local archaic populations has shaped, and helped, the spread of modern humans around the world. Thank you for taking your time to send in your valued opinion to Science X editors. John Hawks Weblog (22 december 2010). The content is provided for information purposes only. The dates of the sediments with mitochondrial DNA, along with the older 160,000-year-old Xiahe mandible, suggest that the Denisovans have been on the Plateau perhaps continuously for tens of thousands of years—more than enough for genetic adaptations to emerge. The vaccine is a "significant step" forward for getting life back to normal, but challenges remain. Beyond Denisova Cave But the biggest Denisovan news of late comes from far beyond the eponymous cave — approximately 1,200 miles away in Xiahe county, China, on … Biden's climate plans: A 'historic tipping point'? In 2010, a fingerbone belonging to a previously unknown hominin species was found buried in Denisova Cave in the Russian Altai Mountains. You can be assured our editors closely monitor every feedback sent and will take appropriate actions. A second study in the same issue of Science supports that idea. The reconstructions - based on complex DNA analysis of Denisovans, Neanderthals, Chimpanzees and humans - show that the Denisovan skull was probably wider than that of us or Neanderthals. This assumption stemmed in part from the fact that the prehistory of Asia is poorly known compared to that of Africa and Europe. The experts predict many Denisovan traits that are similar to that of Neanderthals including a sloping forehead, long face and large pelvis, and others that are unique among humans, like a large dental arch. VideoSaving India's tigers from extinction, 'Let's work together!' Denisovan genetic evidence remains sparse, says paleogeneticist Carles Lalueza-Fox of the Institute of Evolutionary Biology in Barcelona. Finding Denisovan DNA on the Tibetan Plateau itself is surprising. An international team has found evidence that could change our understanding of a mysterious species of early humans, the Denisovans.They have found DNA from these humans in a Buddhist cave on the Tibetan Plateau in China.These finds are adding to experts’ knowledge of the mysterious Denisovans and how they interacted with modern humans as they migrated into Asia.