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Showing posts sorted by date for query Denisovans. Sort by relevance Show all posts

Tuesday, January 13, 2026

Fossils discovered in Morocco shed light on our African roots

Paris (AFP) – Where did our species first emerge? Fossils discovered in Morocco dating back more than 773,000 years bolster the theory that Homo sapiens originally appeared in Africa, scientists said in a study this week.


Issued on: 11/01/2026 - RFI

New fossil evidence from North Africa strengthens the case that Homo Sapiens first emerged on the African continent. © PIERRE ANDRIEU / AFP/File

The oldest Homo sapien fossils, dating from over 300,000 years ago, were found at the Jebel Irhoud northwest of Marrakesh.

Our cousins the Neanderthals mostly lived in Europe, while more recent additions to the family, the Denisovans, roamed Asia.

This has prompted an enduring mystery: who was the last common ancestor of Homo sapiens and our cousins, before the family tree split off into different branches?

This divergence is thought to have occurred between 550,000 and 750,000 years ago.

Until now, the main hominin fossils from around that time period were found in Atapuerca, Spain.

They belonged to a species dubbed "Homo antecessor", dated back around 800,000 years ago, and had features that were a mix of the older Homo erectus and those more similar to Homo sapiens and our cousins.

This sparked a contentious debate about whether our species originally emerged outside of Africa, before returning there.

There was "a gap in the fossil record of Africa", French paleoanthropologist and lead study author Jean-Jacques Hublin told the French news agency AFP.

The research published in the journal Nature fills that gap by finally establishing a firm date for fossils discovered in 1969 inside a cave in the Moroccan city of Casablanca.

Over three decades, a French-Moroccan team unearthed hominin vertebrae, teeth and fragments of jaws that have puzzled researchers.

A slender lower jawbone discovered in 2008 proved particularly perplexing.

The 773,000-year-old lower jawbone found in Morocco © Hamza Mehimdate / PROGRAMME PREHISTOIRE DE CASABLANCA/AFP


"Hominins who lived half a million or a million years generally didn't have small jawbones," Hublin said.

"We could clearly see that it was something unusual – and we wondered how old it could be."

However numerous efforts to determine its age fell short.

When Earth's magnetic field flipped

Then the researchers tried a different approach.

Every once in a while, Earth's magnetic field flips. Until the last reversal – 773,000 years ago – our planet's magnetic north pole was near the geographic south pole.

Evidence of this change is still preserved in rocks around the world.

The Casablanca fossils were discovered in layers corresponding to the time of this reversal, allowing scientists to establish a "very, very precise" date, Hublin said.

This discovery eliminates the "absence of plausible ancestors" for Homo sapiens in Africa, he added.

Antonio Rosas, a researcher at Spain's National Museum of Natural Sciences, said it adds "weight to the increasingly prevalent idea" that the origins of both our species and the last common ancestor of Homo sapiens and Neanderthals/Denisovans lie in Africa.

"This work also suggests that the evolutionary divergence of the Homo sapiens lineage might have started earlier than is conventionally assumed," Rosas, who was not involved in the research, commented in Nature.

Like Homo antecessor, the Casablanca fossils have a mix of characteristics from Homo erectus, ourselves and our cousins.

But while clearly closely related, the Moroccan and Spanish fossils are not the same, which Hublin said is a sign of "populations that are in the process of separating and differentiating".

The Middle East is considered to have been the main migration route for hominins out of Africa, however sinking sea levels at certain times could have allowed crossings between Tunisia and Sicily – or across the Strait of Gibraltar.

So the Casablanca fossils are "another piece of evidence to support the hypothesis of possible exchanges" between North Africa and southwestern Europe, Hublin said.

Thursday, January 08, 2026

The Bright Side: Fossils found in Morocco shed light on humanity's African roots

Fossils of archaic humans found in a cave in Casablanca are helping to fill a gap in the history of humanity's evolutionary lineage, with researchers saying they may represent a population that existed shortly before Homo sapiens populated Africa.


Issued on: 07/01/2026 
By: FRANCE 24

The 773,000-year-old mandible ThI-GH-10717 from Thomas Quarry in Morocco. © Hamza Mehimdate, Programme préhistoire de Casablanca via AFP

Fossilised bones and teeth dating to 773,000 years ago, unearthed in a Moroccan cave, ⁠are providing a deeper understanding of the emergence of Homo sapiens in Africa, representing the remains of archaic humans who may have been close ancestors of our species.

Researchers said the fossils – lower jawbones of two adults and a toddler, as well as teeth, a thigh bone and some vertebrae – were unearthed in a cave called Grotte à Hominidés ​at a site in the city of Casablanca. The cave appears to have been a den for predators, with the thigh bone bearing bite marks ‍suggesting the person may have been hunted or scavenged by a hyena.

The researchers said the most appropriate interpretation is that these fossils represent an evolved form of the archaic human species Homo erectus, which first appeared about 1.9 million years ago ​in Africa and later spread to Eurasia.

The bones and teeth display a mix of primitive and more modern human characteristics. They ​fill a gap in the African fossil record of species in the human evolutionary lineage – called hominins – from about one million to 600,000 years ago.


According to the researchers, the fossils may represent an African population that existed shortly before the evolutionary split of the lineages that led to Homo sapiens in Africa and two closely related hominins – the Neanderthals and Denisovans – that inhabited Eurasia.

"I would be cautious about labeling them as 'the last common ancestor', but they are plausibly close to the populations from which later African – Homo sapiens – and Eurasian – Neanderthal and Denisovan – lineages ultimately emerged," said paleoanthropologist Jean-Jacques Hublin of Collège de France in Paris and the Max Planck Institute for Evolutionary Anthropology in Germany, lead author of the study published on Wednesday in the journal Nature.

"The fossils show a mosaic of primitive and derived ‍traits, consistent with evolutionary differentiation already underway during this period, while reinforcing a deep African ancestry for the Homo sapiens lineage," Hublin added.

The oldest-known fossils of Homo sapiens, dating to about 315,000 years ago, were also found in Morocco, at an archaeological ​site called Jebel Irhoud.

Knowing the age of the Grotte à Hominidés fossils, based on the magnetic signature of cave sediments surrounding the fossils, helped the researchers assess how this population fit into the human family tree.

"Establishing the age was essential to the interpretation of this material," Hublin added.

The fossils were buried by fine sediments ‌over time and the cave entrance was sealed by a dune, enabling exceptional preservation of the remains. Hundreds of stone artefacts and thousands of animal bones were also discovered in the cave.

The Grotte à Hominidés human fossils are roughly the same age as fossils from a site ‍called Gran Dolina near Atapuerca in Spain that represent an archaic human species called Homo antecessor. In fact, these fossils share some traits.

"The similarities between Gran Dolina and Grotte à Hominidés are intriguing and may reflect intermittent connections across the Strait of Gibraltar, a hypothesis that deserves further investigation," Hublin said.

Hominins from this time possessed body proportions similar to ours but with smaller brains.

The jawbone, or mandible, of the Grotte à Hominidés child, who was about 1-1/2 years old, was complete, while the mandible of one of the adults was nearly complete and the other was partial. One of the adult jawbones was built more robustly than the other, suggesting one was from a man and the other from a woman. The largest of the fossils was the adult thigh bone, ‍or femur.

These people were capable of hunting prey but roamed a dangerous landscape and sometimes found themselves as the hunted, with large carnivores, including big cats and hyenas, on the prowl.

"Only the femur displays clear evidence ‌of carnivore modification – gnawing and tooth ​marks – indicating consumption by a large carnivore. However, the cave appears primarily to have been a carnivore den that hominins used only occasionally. The absence of tooth marks on the mandibles does not imply that other parts of the bodies were not consumed by hyenas or other carnivores," Hublin said.

(FRANCE 24 with Reuters)

Wednesday, December 03, 2025

Becoming human in southern Africa: What ancient hunter-gatherer genomes reveal





University of Johannesburg
Some of the earliest Homo sapiens genetic ancestry traced back to Southern African hunter-gatherers 

image: 

Mandible of a hunter-gatherer woman who lived 7900 years ago at Matjes River Rockshelter in the Western Cape, South Africa,  for whom a genome was reconstructed.

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Credit: Photo by Helena Malmström.






In one of the largest African hunter-gatherer ancient-DNA studies to date, population geneticists from Uppsala University in Sweden, and a cognitive archaeologist from the University of Johannesburg, South Africa, analysed the DNA of 28 people who lived in southern Africa between 1200 and just a few hundred years ago. It contributes further evidence that southern African hunter-gatherers were some of the earliest human groups with a unique Homo sapiens genetic ancestry tracing back to about 300 000 years ago.

This could be done by peering behind the veil of recent migrations, providing a direct window into the region’s population history before large-scale movements that reshaped the continent's genetic landscape.

Some sapiens-specific adaptations from southern Africa

They found 490 modern human or Homo sapiens specific genetic variants in the ancient southern African hunter-gatherers. Amongst these, immune-system related genes and genes related to kidney function were prevalent.

“When we examine all human genetic variation and look for evolutionary changes on the Homo sapiens lineage, we surprisingly find adaptations of kidney-functions as one of the most dramatic changes. This adaptation may be related to human’s specific water-retention and body-cooling system, which give us special endurance”, says population geneticist Mattias Jakobsson.

Three variants – not specific to all humans, but to the ancient southern Africans – were also located in genes associated with UV-light protection, skin-diseases, and/or skin-pigmentation. Different from the rainforests of central Africa, southern African’s more open ecologies with little natural shade, likely made it important for human foragers to develop UV-light protection genetically.

Most genes have many different functions, and akin to immunity and UV-light protection traits, some behavioural and cognitive traits are also largely heritable. It is therefore noteworthy that more than 40% of the Homo sapiens-specific genetic variants found in the ancient southern African hunter-gatherers are also associated with neurons for brain growth and cognitive traits, or the way that human brains process information today.

Out of southern Africa

Southern Africa may have been an ecological refuge for humans since a cold phase almost 200 000 years ago. Here hunter-gatherers thrived, adapting to a diverse landscape rich in plant and animal resources.

It seems that these southern hunter-gatherers did not mix again with other Africans until after 1400 years ago. By that time, the DNA from eastern African pastoralists, and western African farmers became apparent in southern African populations.

The results from this new study differ from previous linguistic, archaeological, and some early genetic studies, that saw contemporary southern African Khoe and San as the descendants of a once-widespread population that extended across much of southern, eastern, and northeastern Africa.

Instead, it shows that some genetic adaptations for becoming human in Africa were unique to southern African hunter-gatherers who lived in a relatively large, stable population for many millennia south of the Limpopo River.

After about 100-70 000 years ago, small groups of southern African hunter-gatherers may have wandered northwards, carrying several of their genetic signatures and perhaps also techno-behaviours with them.

For Stone Age and cognitive archaeologist from the University of Johannesburg, Marlize Lombard, “this is a meaningful outcome, suggesting that the complex thinking and techno-behaviours such as making compound adhesives or bowhunting, observed in the southern African archaeological record from about 100 000 years ago originated locally, probably trickling northward with the genes of local hunter-gatherers from about 70 000 years ago”.

Are the descendants of ancient hunter-gatherers still among us?

From the Limpopo Province in the north to the south coast of the Western Cape, and from Ballito Bay in KwaZulu-Natal to Augrabies in the Northern Cape, these ancient people almost all shared genetic markers (such as the mitochondrial L0d haplogroup) that are inherited from a single maternal ancestor.

These markers are still found in sub-Saharan Africa, mostly in San or Bushman people such as the Ju/’hoan in Namibia and Botswana, and the Karretjie Mense of South Africa. To a lesser extent the markers are also present in the Coloured population of South Africa, as well as in some Afrikaans speaking south Africans of European descent (mostly French and Dutch), who started to live in the Cape during the 17th century.

Many of the people currently living in South Africa are therefore the descendants of the original hunter-gatherer population to a greater or lesser degree.

Early population history

What excites co-author, Carina Schlebush, most: “is that these genomes provide an unadmixed view of early southern African population history. With increasing numbers of high-coverage ancient genomes, we are now approaching true population-level insights. This gives us a much clearer foundation for understanding how modern humans evolved across Africa”. 

Researchers do not yet understand everything that contributed to becoming human in southern Africa, or elsewhere.

The genomes of ancient southern African hunter-gatherers as one of the earliest Homo sapiens groups to split from a common ancestor, however, has a lot to offer. It shows, amongst other things, that genetic variation may still be hidden in other ancient African forager groups, as well as indigenous peoples from elsewhere on the globe for whom there are little available genetic data. Such data is important for advancing our understanding of human evolution.

For lead-author Mattias Jakobsson: “These ancient genomes tell us that southern Africa played a key role in the human journey, perhaps ‘the’ key role”.

###

Notes to Editors

For email questions about this research, please contact Prof Marlize Lombard on Wed 3 Dec or Thurs 4 Dec at mlombard@uj.ac.za. News release written by Prof Marlize Lombard.

Funding

This project was funded by grants from the Knut and Alice Wallenberg foundation (to Mattias Jakobsson and to Carina Schlebush), the Swedish Research council (grant 2022-04642 to Mattias Jakobsson, grant 2023-02944 to Carina Schlebush) and South African National Research Foundation (African Origins Platform grant 98815 to Marlize Lombard).

Acknowledgements

Sequencing was performed at the SciLifeLab SNP&SEQ Technology Platform in Uppsala and the computations and data handling were enabled by resources provided by the National Academic Infrastructure for Supercomputing in Sweden (NAISS) at UPPMAX.

Sampling permits were obtained from the South African Heritage Resources Agency (SAHRA). We thank the staff at Bloemfontein Museum, the Florisbad Research Station and the School of Anatomical Sciences and Evolutionary Studies Institute, University of the Witwatersrand for facilitating work with the collections; the members of the Working Group of Indigenous Minorities in Southern Africa (WIMSA) and the South African San Council for their support and facilitating fieldwork for the collections that involved modern-day Khoe-San groups published previously, also used in this study. We thank our brilliant and long-term collaborator and co-author J. Brink who sadly passed away during the course of this project.


300,000-year old Homo sapiens genetic ancestry traced back to Southern African hunter-gatherers 


At a rock shelter 540km east of Cape Town, researchers traced back some of the earliest Homo sapiens genetic ancestry 

Thursday, October 02, 2025

 

The Multi-Million-Year Path to Becoming Human—Are We Actually There Yet? – OpEd

human evolution


By  and 

A conversation with the legendary evolutionary thinker and archaeologist, Eudald Carbonell.


Our chapter in the human evolutionary story is one of a globally connected population that has ballooned thanks to a suite of recent technologies. We frequently congratulate ourselves on these achievements, unique to the animal kingdom. But what if the celebrations are a little premature? Should we take into consideration that more phases of development will come in mind, behavior, and even appearance? Can we identify where we are in the process and what the pathways of change look like?

These are the kinds of questions that can keep professor Eudald Carbonell up at night. Carbonell is one of the most prominent archaeologists and thinkers on human evolution on the international stage today. He is best known as the co-director of the UNESCO World Heritage Site, Sierra de Atapuerca archaeological complex in Burgos, Spain, home to one of the longest records of human evolution known to science. A professor at the Universitat Rovira i Virgili, Carbonell also established the Catalan Institute of Human Paleoecology and Social Evolution in Tarragona, Spain, where he continues to mentor students and researchers.

One of Carbonell’s great legacies is a conceptual framework for thinking about the human evolutionary process that he calls “hominization and humanization.”

In an important summary paper of his concept that we have translated with his approval, Carbonell explains hominization as:

“… a biological process in which a series of morphological and ethological changes in the primate order generate a structure with enormous evolutionary potential. This process involves, in addition to the genetic material that carries the information, the continuous change in ecological conditions to which these primates must adapt in order to survive. … In the long process toward humanization, humans have undergone a series of acquisitions—or improvements on previous acquisitions—that have made our current uniqueness possible.”


Carbonell wants us to understand that the hominization and humanization processes are two sides of the same coin. And that the humanization process has its own trajectory, which includes an active choice in our fate.

“Humanization must be seen as an evolutionary state of being that our species has not yet attained, but toward which we—as a species—can aspire:

“Humanization, as a systemic structural acquisition, represents a cosmic awakening, a singularity composed of multiform acquisitions that have allowed us, over time, to break with the inertia of the past and overcome natural selection to delve into what is currently unknown. It is essential to begin by understanding the initial concept, which provides us with the foundation of knowledge that makes the process of humanization possible and, therefore, places us right at the beginning of the entire human adventure.”

Initially, straitjacketed by biological limits, our ancestors eventually invented the technologies that would come to rewrite the rules. We are completely reliant on culture and symbolic communication for this stage of extraordinary economic development and population growth.

Carbonell’s thinking and published research have influenced scholars, including us, to consider whether the next phases of human development are only possible if we can take guidance from what this revolutionary deep-time archaeology is teaching us. We met with Carbonell to discuss these ideas and reflect on the wisdom he has attained over the decades.

Jan Ritch-Frel and Deborah Barsky: Your concept of hominization to humanization is a powerful framework for understanding human origins and our own framework. Can you briefly describe the meaning of this process?

Eudald Carbonell: This concept describes a hybridization process between biological and cultural traits. Hominization refers to all the biological developments characterizing the human evolutionary process. For example, when early hominins adopted an erect stature and fully bipedal locomotion, this was an important shift that liberated the hands from locomotory tasks and led to crucial modifications of the brain.

Humanization refers to all of the social and cultural developments that are associated with the different stages of human biological evolution. The concept of humanization is distinct from hominization, but their relationship should not be seen as one of coevolution but rather one of integral evolution. I don’t like the concept of coevolution. Instead, I propose the idea of evolutionary integration, wherein one incidence triggers another, engaging a process of reproduction through retro-alimentation. So, when I speak about hominization and humanization, I am referring to a process of hybridization of both biological and cultural traits.

Ritch-Frel and Barsky: New data emanating from archaeogenomics indicate a braided human evolution pathway: What do hominization and humanization tell us about the culmination of this process and our own experiences of being and becoming?

Carbonell: The evolutionary process of hominization and humanization is very complex. Previously, it was conceived of as a linear phenomenon—occurring sequentially—but it is not. In fact, it is plural and very multifaceted, like a bush with many branches. For example, advances in genetic studies (paleogenomics) now demonstrate that we are a hybrid of the many species with which we coexisted in Paleolithic Eurasia at different times, like the Neandertals and the Denisovans. We have also learned that anatomically modern humans emerged from yet another hybrid species much earlier than previously thought. In reality, the story of our genus Homo is very complex. I agree with my good friend, the famous paleoanthropologist Tim White, who said that Homo erectus and Homo sapiens are actually the same, in the sense that they represent a single evolutionary branch composed of a long succession of distinct individuals.

Modern humans are the result of multiple hybridization events. Only some 40,000 years ago—when the last known hybridization took place—the genomes recorded from some fossils of modern human individuals, who lived in Eurasia, have revealed relatively high percentages of Neandertal and Denisovan inputs. That means that H. sapiens emerged as a result of genetic drift; presently, our species has predominated as an outcome of this supersystem, but we are hybrids. We are not what we thought we were.

Ritch-Frel and Barsky: A lifetime like yours spent studying prehistory must allow you to develop original perspectives: Is the life of an archaeologist really the fantastic journey that most people think it is?

Carbonell: When you work, you always encounter deceptions. But the truth is, I have been obsessed with human evolution for many decades. Now that I am [72 years old], I feel I am ready to work on the future because I think that our species should know where it is headed. But my experience has also taught me that in order to think about where we are going, we need to investigate the past.

To me, the past and the future are the same and can be considered as having a linear quality, but only if we know the whole sequence. So, to speak with more authority about the future, we need to know the past. Without this knowledge, we cannot adequately develop our minds, our consciousness, our human intelligence.

In my opinion, we should define how we want to shape our future; what we want as a species. Do we want to be 4 billion people in the world? Do we want to be more cooperative? Do we want to be more united? Or do we want to disconnect? Once we know what we want to be, then we can look to the past to see what we need to do to get there. Do we want to be more eco-social? Do we want to show more respect to the natural and historic patterns we come from? Or do we want to break it all down—and even destroy ourselves? That is the first thing that we need to decide. If we don’t want to destroy ourselves, then we must find better ways to cooperate.

Ritch-Frel and Barsky: Archaeologists develop a special perspective because they spend more time than most people thinking about human evolution. Do you think this kind of training could be useful for other professions?

Carbonell: Yes, exactly. In fact, I have proposed to integrate a new class into the educational system, from as early as primary school and then also in secondary and university levels, which I have named: Human Social Autecology. Even if this class is taught for only one hour a week, from a young age, when one enters the educational system, let’s say from four or five years old, it could provide our youth with a new vision of the world. The class should be designed to provide a synthesis and should include a wide range of topics, like zoology, biology, sociology, and other subjects.

Acquiring and truly integrating such a wide body of knowledge would be beneficial to humanity on the whole because it would help individuals to learn to think critically and more fittingly assume a more acceptable basic behavioral code based on Human Social Autecology.

Ritch-Frel and Barsky: Do you think the new waves of information coming out of human origins research can address questions that challenge modern humanity?

Carbonell: I think we are an imbecile species. And for that reason, we sometimes believe and act on imbecile ideas that have no scientific proof. Learning about human evolution serves to understand ourselves. Human beings are profoundly evolutionary and evolved.

I sincerely believe that all of these notions, like creationism, in its various forms, or fake news—all of these nonsensical ideas are linked to our failure as a species. They teach us nothing and cannot be demonstrated. For example, the idea that the world is flat; everyone knows that it is round because it has been demonstrated scientifically. Everybody also knows that we originated from primates, that we are primates. Although with a significant difference, we are cultural primates. We are intelligent thinking beings.

About the authors:


Credit Line: This article was produced by Human Bridges.