Chinese Scientists Solve Puzzle of Identifying Extinct Group of Hominins----Chinese Academy of Sciences
One of the strengths of science is its willingness to leave a question open until there is enough evidence to answer it. An incomplete picture is an invitation to investigate, and an explanation that changes when new evidence emerges is a demonstration that the method is working. The developing story of the Denisovans provides an excellent example: an extinct group of humans is acquiring a clearer identity through the patient accumulation and comparison of evidence.
As a Xinhua report reproduced by the Chinese Academy of Sciences explains, Denisovans were first identified in 2010 through DNA recovered from a tiny finger bone found in Siberia. Scientists could recognise a distinct evolutionary lineage before they had much idea of what its members looked like. That imbalance between molecular knowledge and anatomical knowledge presented a problem that further discoveries and improved analytical methods could address.
Religion, Creationism, evolution, science and politics from a centre-left atheist humanist. The blog religious frauds tell lies about.
Showing posts with label Palaeogenomics. Show all posts
Showing posts with label Palaeogenomics. Show all posts
Thursday, 29 October 2026
Monday, 26 October 2026
Creationism Refuted - Eland Collagen in Ocre In A South African Cave - From 50,000 Years Before 'Creation Week'
The Kilpdrift Complex located within the coastal cliffs in the De Hoop Nature Reserve, South Africa, where the samples for the study were collected.
Credit: Ole F. Unhammer
Universitetet i Bergen
Universitetet i Bergen
Some 60,000 years ago, humans occupying a shelter in southern Africa left behind traces of activities that modern science is only now learning to recover. An ochre-rich surface at Kilpdrift Shelter preserves proteins identified as belonging to the common eland, Taurotragus oryx, a large African antelope.
For those who insist that the entire Universe was created only a few thousand years ago, the difficulty begins before we even consider what these people were doing: they were already there, handling animal materials and ochre, tens of thousands of years before the supposed creation of their ancestors.
The discovery is described in a paper published in Proceedings of the Royal Society B by researchers from Kyushu University, the University of Bergen and the University of Copenhagen.
What that contribution represents remains an open question. Animal-derived material may have been deliberately mixed with ochre, or the surface may preserve traces of eland hides treated with it. The finding establishes an association between ochre and animal material; it does not, by itself, establish a particular recipe, a hide-processing technique or a symbolic purpose. Nevertheless, it opens a valuable window onto the technical, and possibly symbolic, behaviour of early Homo sapiens, particularly in environments where ancient DNA is poorly preserved.
Here, then, is another example of archaeology producing inconvenient evidence for biblical literalism simply by investigating the human past. The researchers are asking what people did, which materials they used and how surviving molecules can help reconstruct their activities. There is room for uncertainty about the precise activity recorded on this ancient surface. That uncertainty is not permission to compress 60,000 years of human history into a creationist chronology of six to ten thousand years.
Labels:
Anthropology
,
History
,
Palaeogenomics
,
Palaeontology
,
Refuting Creationism
,
Science
Saturday, 8 August 2026
Refuting Creationism - Ancient Hunters Targeted Female Mammoths - 20,000 Years Before 'Creation Week'
Mammoth bone accumulation site, Kraków Spadzista, Poland
Photo: Jarosław Wilczyñski
A heap of ancient bones does not come with a label explaining how it was formed. When large accumulations of woolly mammoth remains are found at Upper Palaeolithic sites, archaeologists must determine whether the animals were killed by people, scavenged after natural deaths, or accumulated through entirely natural processes such as floods, landslides or animals becoming trapped in bogs.
Cut marks, deliberately broken bones and stone projectile points embedded in mammoth remains show that humans sometimes hunted and butchered these enormous animals. But such evidence is not present on every bone, leaving open the possibility that some of the great mammoth bonebeds of Eurasia resulted largely from natural mortality rather than sustained human exploitation.
Now an international team led by researchers at the Centre for Palaeogenetics in Stockholm has approached the problem from an ingenious new direction: instead of asking only what happened to the bones, they used ancient DNA to determine whether the mammoths were male or female.
As described in a newly published paper in Current Biology, the researchers analysed genome data from 521 woolly mammoths, Mammuthus primigenius, recovered across Eurasia and North America. These included 448 animals sequenced for the first time, making this one of the largest palaeogenomic studies yet undertaken on an extinct species.
The contrast was striking. Among 421 mammoths recovered as dispersed remains from natural depositional settings, 66 per cent were male and only 34 per cent female. That male bias is consistent with the behaviour of modern elephants: adult males commonly leave their natal herds and live alone, making them more likely to take risks or become caught in natural traps such as bogs, sinkholes and landslides.
However, among 100 mammoths from large bone accumulations associated with Upper Palaeolithic people, the ratio was almost exactly reversed: 70 per cent were female and only 30 per cent male. As the researchers explain, this substantial difference provides population-scale evidence that human activity, rather than natural mortality alone, was the principal force creating these bone accumulations.
That does not necessarily mean that hunters deliberately selected females simply because they were smaller than adult males. If mammoths lived like modern elephants, females and their young would have travelled in matriarchal herds capable of mounting a formidable collective defence. However, such herds may also have followed more predictable routes than solitary males, making them easier for hunter-gatherers to locate repeatedly. People may have hunted them, scavenged animals that died along those routes, or—most probably—used a combination of both strategies.
Either way, the result opens a remarkable window onto human behaviour between about 30,000 and 20,000 years ago. Mammoths supplied meat and fat for food, hides for clothing and shelter, bones for construction, and ivory for tools, ornaments and works of art. By combining genetics with archaeology and knowledge of elephant social behaviour, scientists can now reconstruct something of how Upper Palaeolithic people located and exploited this critically important resource.
And all this human ingenuity, accumulated ecological knowledge and repeated interaction with mammoth herds was taking place tens of thousands of years before creationists believe their god created Earth and everything upon it. Once again, the evidence reveals not a recently created world interrupted by a global flood, but a deep and richly documented human past—one preserved not merely in tools and bones, but in fragments of ancient DNA surviving within those bones.
Labels:
Anthropology
,
Creationism Refuted
,
Genetics
,
History
,
Palaeogenomics
,
Palaeontology
,
Science
Subscribe to:
Posts
(
Atom
)





