All articles tagged with #denisovans
Two Denisovan leg bones dredged from the Penghu Channel in Taiwan were assigned to Denisovans via ancient proteomes, and initial estimates suggest they were tall (about 1.8–1.9 meters), but with no secure dating or geological provenance the species-wide height is uncertain and caution is advised in interpreting Denisovans as taller than other ancient humans.
Archaeologists at Lingjing, China, uncovered 146,000-year-old disc-shaped stone cores that show advanced knapping and 3D understanding of stone properties, linked to Homo juluensis and suggesting Denisovan-related interactions. This extends East Asia’s ice-age tech by about 20,000 years and challenges the idea that complex lithic technology arose later in Africa/Europe, with dating refined using uranium-thorium dating of calcite within a bone.
Proteomic analysis of two Denisovan leg bones (Penghu 2 and Penghu 3) from the Penghu Channel near Taiwan suggests some Denisovans were among the Ice Age’s giants, with Penghu 2 around 176–179 cm (≈83 kg) and Penghu 3 potentially up to ~189–190 cm (≈91 kg). Placed in the Denisovan lineage via collagen proteins, these bones reveal a mix of archaic and modern features and imply a diverse, widespread population across Asia, possibly with different hunting adaptations and interbreeding with modern humans. DNA wasn’t recoverable, so proteins provided the link; the findings complement prior genetic work (e.g., Harbin skull, Penghu 1) and highlight Denisovans as a more varied lineage than once thought.
A TRACE-based analysis of 503 genomes found about 0.5–1.1% of human DNA from a mysterious, unsequenced archaic lineage—present across populations including Africans and Oceanians—suggesting ancient interbreeding beyond Neanderthals and Denisovans, though the exact identity of this ghost lineage remains unknown.
UC Berkeley researchers identified DNA segments in modern humans that come from two previously unknown ancestral lineages: a 'ghost' lineage that interbred in Africa more than 50,000 years ago and now accounts for about 1% of everyone’s genome, and a 'super-archaic' lineage that split from other hominins around 1.8 million years ago and later mixed with Denisovans in Eurasia, leaving traces in modern DNA. The findings suggest human evolution involved repeated admixture with multiple unknown groups, not just Neanderthals and Denisovans.
Proteomic analysis of 400,000-year-old Homo erectus teeth uncovers a unique amino‑acid variant shared with Denisovans and present in modern SE Asian and Oceanian populations (about 21% in the Philippines, ~1% in India), suggesting interbreeding and a mosaic ancestry rather than a single lineage. The study highlights how paleoproteomics can reveal genetic connections from old hominin lineages and points to a broader pattern of admixture among ancient humans.
Scientists extracted ancient enamel proteins from six Homo erectus teeth found in three sites in China (about 400,000 years old) using a new, minimally invasive enamel-etching technique. They identified two shared amino acid variants, one of which also appears in Denisovans and some modern humans, suggesting interbreeding between Homo erectus, Denisovans, and Homo sapiens and supporting a networked view of human evolution. The study relied on proteins (not DNA) and analyzed teeth from Hexian and Zhoukoudian, with five males and one female identified, highlighting open questions about how these populations relate to each other.
Ancient enamel proteomics recovered endogenous proteins from six Middle Pleistocene Homo erectus teeth across northern and southern China (~0.4 Ma) and a Denisovan tooth. The study identifies two AMBN variants: a novel AMBN A253G found in all six H. erectus samples and not in other hominins, and AMBN M273V shared with Denisovans, suggesting Denisovans may have inherited this region from an H. erectus–related population. The results imply interactions between East Asian H. erectus populations and Denisovans and support the idea that H. erectus contributed to Denisovan DNA, with some signals ultimately reaching modern humans via introgression. Phylogenetic analyses cluster the H. erectus samples together, illustrating the power of enamel proteomics to illuminate deep human evolution and population diversity in East Asia.
Five handprints and five footprints pressed into travertine at Quesang, Tibet, date to about 169,000–226,000 years ago and appear deliberately arranged, suggesting early human-like artistic behavior by two children (roughly 7 and 12 years old), with possible ties to Denisovan activity.
Sedimentary DNA—DNA preserved in soils and sediments—is revolutionizing how we study human origins, enabling detection of Neanderthal, Denisovan, and early Homo DNA even where bones aren’t found. Since the 2017 breakthrough identifying ancient human DNA in ice-age soils, researchers have used targeted probes to enrich nuclear DNA and shotgun methods to extract DNA from cave sediments, pushing back timelines at sites like Denisova Cave and Baishiya Karst Cave. While mtDNA remains easier to recover and informative about lineages, nuclear DNA offers deeper population history but is rare and data-limited, requiring careful analysis to avoid contamination. Overall, dirt could complement or even replace some fossil work, opening a vast “blue ocean” of information about our past.
New fossils and analyses from China indicate eastern Asia played a central role in Homo evolution over the past 2 million years, with Denisovan-related fossils reclassified as Homo juluensis and Homo longi, and Yunxian 2 suggesting an early Homo sapiens divergence; China is portrayed as a dynamic crossroad where multiple Homo lineages interacted and admixed, shaping a diverse regional mosaic.
Ghost lineages are extinct or unsampled ancestral populations whose DNA persists in modern genomes; scientists detect them when portions of our DNA cannot be traced to known relatives, revealing hidden chapters of evolution and ancient gene flow from Neanderthals, Denisovans, and other unknown lineages.
A Denisovan jawbone found 60–120 meters deep off the coast of Taiwan and identified using paleoproteomics confirms Denisovans’ presence in warmer coastal Asia and suggests they thrived in diverse environments beyond Siberia. Dating is uncertain, estimated between 10,000 and 190,000 years ago, highlighting their adaptability and potential interactions with other hominins.
Scientists have identified a new human ancestor, 'Dragon Man,' linking it to the Denisovan group through advanced protein analysis of a 146,000-year-old skull from Harbin, China, providing new insights into human evolution and ancient migrations.
Scientists have confirmed the identity of the 'Dragon Man' skull as Denisovan through advanced DNA and protein analysis, providing the first physical evidence of what Denisovans looked like and shedding light on their physical traits, environment, and genetic legacy in modern humans.