Vous êtes peut-être plus musclé grâce à Néandertal : ce gène vieux de 47 000 ans pourrait tout expliquer


Paleoanthropologists have identified a trove of Denisovan fossils from a cave in China’s Yunnan province, extending the known range of the elusive human relative and providing the first-ever direct evidence of what its forearm bones looked like.
The post Denisovans Once Roamed Southwest China, New Fossils Reveal appeared first on Sci.News: Breaking Science News.
Researchers have identified more than 1,200 locations in the human genome associated with personality traits, offering the most detailed look yet at the biological underpinnings of traits like sociability, anxiety and curiosity.
The post Scientists Map Genetics of Personality across Million People appeared first on Sci.News: Breaking Science News.
A new analysis of three skull fragments unearthed at the Gran Dolina cave site in Spain indicates that Homo antecessor had bone thickness closer to that of Neanderthals and modern people than to more archaic hominins.
The post Homo antecessor Had Surprisingly Modern Skull, New Fossils Suggest appeared first on Sci.News: Breaking Science News.
Neanderthals vanished roughly 42,000 years ago, but a piece of their biology appears to be quietly at work in some people today, according to a new study led by scientists from the Max Planck Institute for Evolutionary Anthropology.
The post Neanderthal Gene Still Shapes Muscle and Jaws in Some Living Humans appeared first on Sci.News: Breaking Science News.
A team of researchers from the University of Sydney and the University of Glasgow argues that dietary sugars, not animal foods, may have played the decisive role in the expansion of the human brain over the past 4 million years, as hominin brain size grew nearly fivefold, from about 300 grams in early relatives like […]
The post Study Points to Sugar, Not Just Meat, as Fuel for Human Brain Evolution appeared first on Sci.News: Breaking Science News.
New research led by the University of California, Berkeley reveals that beyond Neanderthals and Denisovans, humans interbred with two mysterious ‘ghost’ lineages: one in Africa more than 50,000 years ago, another in Eurasia over 1.7 million years ago.
The post Scientists Find Traces of Two Unknown Archaic Hominins in Human DNA appeared first on Sci.News: Breaking Science News.
A fossilized skull fragment of Homo sp. unearthed in central Spain offers paleoanthropologists a fresh window into the story of ancient humans who lived in Europe hundreds of thousands of years ago.
The post 224,000-Year-Old Homo Skull Fragment Adds New Mystery to Human Origins appeared first on Sci.News: Breaking Science News.
Ararat-1, a modest limestone cave that lies at an elevation of 1,034 m on the eastern flanks of the Ararat Depression in central Armenia, has yielded a striking puzzle about how Middle Paleolithic humans moved across their landscape.
The post Stone Tools from Armenian Cave Reveal Split Strategy for Survival 50,000 Years Ago appeared first on Sci.News: Breaking Science News.
In a new study of chimpanzees (Pan troglodytes) and bonobos (Pan paniscus), scientists found that embraces, touches and other reassuring gestures before competition for food were linked to more peaceful sharing, suggesting the roots of human social touch stretch back at least six million years.
The post Hugs May Be an Ancient Peacekeeping Tool, Ape Study Suggests appeared first on Sci.News: Breaking Science News.
In Israel’s Qafzeh cave, archaeologists have discovered an intriguing set of ancient human remains that reveal a story of illness, violence, death, and survival in the remote past.
The international team of archaeologists from Centro Nacional de Investigación sobre la Evolución Humana (CENIEH) and Tel Aviv University revealed their analysis of ancient human fossil remains, known as Qafzeh 25, in a recent paper published in Scientific Reports.
The findings provide rare evidence of interpersonal violence, care for the injured, and early funerary practices in a human population that lived between 92,000 and 145,000 years ago.
The researchers used a range of techniques to examine one particularly intriguing skull, including high-resolution micro-computed tomography (microCT) alongside macroscopic and microscopic analyses. Their investigation revealed a linear lesion across the mandible and lower premolars, with characteristics consistent with trauma inflicted by a sharp object.
Despite the severity of the injury, the researchers concluded that the individual survived the ordeal based on evidence of bone remodeling. The extent of healing suggests the person lived for a considerable period after suffering the wound.
Although the available evidence does not allow archaeologists to determine exactly how the injury occurred, they consider interpersonal violence the most likely explanation. The discovery is particularly significant because evidence of sharp-force trauma in Middle Paleolithic human remains is exceedingly rare.

Beyond the apparent head injury, the Qafzeh 25 skull yielded another remarkable discovery. Detailed examination of the teeth revealed dental conditions that had not previously been documented in humans of this antiquity.
The microCT scan revealed a hidden carious lesion in a lower premolar, along with enamel defects. These sorts of tooth decay issues are uncommon in early homo sapiens, as they are largely caused by bacteria that thrive on sugars. Before the advent of agriculture and later processed carbohydrates and refined sugars, such tooth decay was rare due to diets high in meats, nuts, and fibrous vegetables, which helped clean the teeth.
Looking beyond the skull, the researchers also examined the broader funerary context of the skeleton in an effort to reconstruct the burial practices of these ancient humans.
A broader analysis of the entire skeleton suggests it was deliberately buried, as it lacks evidence of carnivore predation or damage consistent with exposure to the elements. According to the researchers, this makes Qafzeh Cave one of the most important sites in the world for studying Homo sapiens’ earliest internment practices and the relationship not just between the living and the dead, but also between the living and the dying.
“These findings provide new evidence in the ongoing debate about the origins of complex behaviours such as interpersonal violence, the care of injured or ill individuals, and funerary practices—fundamental aspects for understanding the social and cultural evolution of our species,” said lead author Ana Pantoja Pérez, a member of the DEATHREVOL research group.
The find represents one of the earliest known well-preserved human populations outside of Africa at this time, residing in the Levant at least 90,000 years ago. With evidence of a healed traumatic injury, unusual dental disease, and intentional burial, the Qafzeh 25 skeleton offers a rare glimpse into the lives—and deaths—of some of our earliest ancestors.
The paper, “A Taphonomic Reassessment of Qafzeh 25 and Its Implications for Violence, Health and Funerary Practices,” appeared in Scientific Reports on June 30, 2026.
Ryan Whalen covers science and technology for The Debrief. He holds an MA in History and a Master of Library and Information Science with a certificate in Data Science. He can be contacted at ryan@thedebrief.org, and follow him on Twitter @mdntwvlf.
Üçağızlı II Cave on Türkiye’s Mediterranean coast has yielded a rare and detailed record of two Homo species living the same way of life, one after the other, over more than 20,000 years, offering new evidence that the transition from Neanderthals to modern humans in the region was far more culturally seamless than previously understood.
The post Ancient Turkish Cave Reveals Neanderthals and Homo sapiens Shared Same Way of Life appeared first on Sci.News: Breaking Science News.
Domestic cats (Felis catus) develop the same patterns of brain shrinkage and neurological decline as aging humans, and scientists think that makes them an ideal window into dementia and aging.
The post Domestic Cats Age Like Humans, New Study Shows appeared first on Sci.News: Breaking Science News.

New research from the University of Oxford and the University of Reading suggests bipedalism and expanding brain size helped drive the overwhelming dominance of right-handedness in humans.
The post Upright Walking and Larger Brains May Explain Why 90% of Humans Favor Their Right Hand appeared first on Sci.News: Breaking Science News.