From space-surviving tardigrades to ghostly deep-sea fish, these creatures make Earth’s impossible places look alive.Scientists have uncovered compelling new evidence that early human ancestors, likely Homo erectus, were deliberately bringing fire into Wonderwerk Cave in South Africa as far back as 1.79 million years ago.
The post Evidence of Fire Use by Early Humans May Date Back Nearly 1.8 Million Years appeared first on Sci.News: Breaking Science News.
Archaeologists working with the Israeli Antiquities Authority have announced the discovery and excavation of a cave located just outside the town of Fureidis, which has revealed signs of early human presence dating back to between 250,000 and 400,000 years ago.
The team of researchers behind the ongoing excavation said the fortuitous discovery could represent a “time capsule” that has remained sealed for hundreds of thousands of years, offering researchers an unprecedented glimpse into a critical period in human evolution.
According to a statement emailed to The Debrief, the ancient cave, which lies south of Haifa, near the Zikhron Ya’akov interchange, likely dates back to sometime between 400,000 and 250,000 years before present. The team notes that the range would mean it was sealed since the time of the Acheulo-Yabrudian culture, a period when ancient human ancestors began to display several complex tool-making skills, including various stone blade designs which were in use by hominins until around 300,000 years ago, marking the end of the Lower Paleolithic period.
“The culture we are investigating here was characterized by a variety of advanced methods for producing flint tools, including small sharp handaxes, scrapers, and blades,” explained Dr. Kobi Vardi, head of the Prehistory Branch at the Israel Antiquities Authority and the study’s co-director.
Most archaeologists put the African departure date of the last common ancestor of humans and Neanderthals between 700,000 and 500,000 years ago, and the first genetic interbreeding between the two species around 130,000-1,000,000 years ago. Therefore, finding a sealed cave containing relics from the period between these two critical evolutionary junctures offers the research team an unprecedented opportunity.
“We have been fortunate to excavate a unique site of global importance that has been protected from the ravages of time thanks to the exceptional conditions that existed here,” said team member Professor Ron Shimelmitz of the Zinman Institute of Archaeology and the School of Archaeology and Maritime Cultures at the University of Haifa.
Dr. Vardi agreed, noting that “It is very rare to find a site in such a state of preservation.”
“Every prehistorian who visits the site is absolutely thrilled,” he added.
In that same statement, Prof. Shimelmitz noted that the end of the Lower Paleolithic was a “unique time period” before Neanderthals and modern humans became the dominant hominids of the era and spread across “many regions.”
“Only a handful of sites from this important phase have been uncovered in Israel, and the wider Levant, and most of them are inaccessible for research,” the professor explained, adding that marked changes in human physiology, technology, and social organization “foreshadowed the traits and complex behavioral patterns that developed later and characterize both Neanderthals and modern humans.”
One component that helped facilitate the development of complex culture, highlighted by Prof. Shimelmitz, is the transition from ancient humans living in larger groups. He also emphasized the advent of human ancestors “spending longer periods at the same sites.”
Early excavations have already uncovered evidence of what the researcher termed “intensive use of fire.” These early forays have also found signs of prolonged human activity. Prof Shimelmitz said these signs suggest a “complex and rich camp life.”
Dr Vardi said that the ongoing excavation is uncovering animal bones, including ancient specimens of fallow deer, gazelle, and an ancient variety of horse.
Dr. Vardi also noted that these finds were discovered “alongside evidence of the presence of water,” which he suggests may have made the ancient cave an attractive location for hunter-gatherer groups inhabiting the region at the time.
When discussing the implications of their findings, Prof. Shimelmitz first expressed the team’s appreciation for the financial support and enthusiasm shown by the project’s sponsor, the Ayalon Highways Company, “in enabling us to undertake the excavation.”
As for the scientific value of their initial discoveries and the potential for further insights into this period in human history, the professor noted that findings to date are typically associated with “the development of social cooperation and the transmission of knowledge, as part of the processes of human evolution.”
Dr. Vardi echoed those sentiments, while also noting that the ancient cave’s archaeological value “is no less important” than that of the well-known Nahal Me’arot site from the same evolutionarily critical period.
“(This site) will allow us to study in high resolution how humans lived at that time,” the researcher added.
Given the importance the research team put on the site, which included co-leader Amit Gabbay, the Israel Antiquities Authority and the University of Haifa are already putting forth what they describe as a “large-scale research program that seeks to reconstruct how humans lived, adapted to their environment, and developed new lifestyles and technologies over the course of human evolution.”
Along with heralding the site’s scientific value, the researchers highlighted its cultural importance by declaring their goal to make the site “open and accessible to all: to the residents of Fureidis, students at the nearby school, and anyone interested in the prehistory of the region,” once the formal excavations are completed.
Christopher Plain is a Science Fiction and Fantasy novelist and Head Science Writer at The Debrief. Follow and connect with him on X, learn about his books at plainfiction.com, or email him directly at christopher@thedebrief.org.
New radiocarbon dates from Sala Keimada, a hard-to-reach chamber of Cueva Palomera in the province of Burgos, northern Spain, suggest that generations of people returned to the sacred space from the end of the Ice Age through the Iron Age, leaving behind art, structures and offerings.
The post Spanish Cave Sanctuary Reveals More Than 11,500 Years of Activity appeared first on Sci.News: Breaking Science News.
Strange green stones, evidence of repeated ancient expeditions, hidden burials, and other discoveries have been made in a remote cave high in the Pyrenees mountains.
The findings were made in a cave located more than 7,300 feet above sea level, revealing evidence that ancient visitors repeatedly endured the hardships of climbing to such altitudes for a period spanning 2,000 years. The question for archaeologists had been why this cave seems to have held such importance.
Now, discoveries at the remote site could potentially alter our understanding of ancient European uses of mountain landscapes in prehistoric times. Of key importance, archaeologists have uncovered ancient hearths that contain small samples of green minerals, which point to ancient mining activities that likely supported ancient metallurgy in the region.
For more than 2,000 years, ancient Europeans repeatedly traveled to this remote cave, leaving behind evidence of their visits that includes ancient hearths and even a child’s tooth, suggesting the possibility that there may even be hidden graves at the site.
Professor Carlos Tornero, a researcher with the Catalan Institute of Human Paleoecology and Social Evolution, says these discoveries are surprising, since past research suggested such areas would only have been occasionally traversed by humans during periods of migration, rather than becoming destinations.
“For a long time, high-mountain environments were seen as marginal, places prehistoric communities passed through occasionally,” said Tornero, who is the lead author of a new study detailing the findings.
That wasn’t the case with this Cave 338, as archaeologists now call it, which turned out to be a far more unique site.
“We found a really rich archaeological sequence, including multiple combustion structures and a very large number of green mineral fragments,” Tornero recently said. “We can’t say exactly how long people stayed each time, but the repeated use of the space and the density of remains suggest occupations that were short to medium in duration, but happening again and again over long periods of time.”
At Cave 338, initial excavations began with a small area spanning six square meters near the cave’s entrance. There, Tornero and the team uncovered evidence of human activity temporally associated with four distinctive layers.
In the most recent layer of human occupation, artifacts from historical periods were found, although in smaller numbers, which suggested that the cave’s use had likely decreased gradually with time. Similar limited use was evidenced in the cave’s deepest layers, where charcoal fragments were discovered with dates indicating human activity as far back as 6,000 years ago.
Within layers two and three, significantly more activity was discernible. Discoveries within these layers included nearly two-dozen hearths, many of which contained burned fragments of a green mineral that researchers believe may be malachite.
If confirmed, this is significant, since malachite is rich in copper and can be processed to extract the metal, meaning that ancient visitors to the cave may have visited the site specifically to mine this unique green mineral. Cave 338 would therefore represent a very high-altitude mining camp, which ancient Europeans somehow discovered and repeatedly visited.
Based on radiocarbon dating, hearths located in the site’s second layer are approximately 3,000 years old, while those in the layer directly beneath it date to between 4,000 and 5,000 years ago.
Dr. Julia Montes-Landa of the University of Granada, who was a co-author of the new paper, says that evidence suggests many of the fragments were thermally altered—in other words, they were intentionally exposed to fire—while some of the samples found at the site were not.
This, she argues, “clearly suggests that fire played an important role in their processing and that there was a deliberate intention behind it.”
“They weren’t burned by accident,” Montes-Landa says.
Another indication of ancient industrial activity at the site involves the placement of the hearths in layers two and three, many of which overlap, which strongly suggests reuse. However, more than one area containing overlapping hearths is present, which also suggests that while reuse occurred, it took place in successive periods of visitation throughout time.
In addition to ancient evidence of mining and thermal alteration of stone, within the site’s third layer, a small amount of human remains—an ancient baby tooth and a finger bone believed to have belonged to a child—were found.
Such scant remains do not provide context for the cause of death or whether the remains came from the same individual. However, it does point to the possibility of hidden burials that may exist in other portions of the cave.
In addition to human remains, prehistoric artifacts were found at the site, which date to the second millennium BC, including a shell pendant and another made from a bear’s tooth.
“The shell pendant is interesting because it has parallels in other sites in Catalonia, which suggests shared traditions or connections between different communities,” Tornero said. “The bear tooth pendant is much less common.”
“That might point to something more specific or symbolic, possibly linked to the local environment,” Tornero suggests.
Obviously, 338 held significance to ancient inhabitants of the region, since, despite the daunting trek reaching it would have required, humans clearly returned there over and over again for a period of at least two thousand years, although evidence of human presence at the location extends to as much as double that amount of time.
Going forward, Tornero, Montes-Landa, and their colleagues hope that future excavations may reveal additional clues about who had been coming here for so long, and what specifically attracted them to the cave.
Of key significance will also be confirmation that the mineral contains copper.
“The identification of the green mineral as malachite is still preliminary,” Tornero says, adding that ongoing research “will provide final answers shortly.”
Much work remains to be done at the site, and Tornero and his team plan to resume excavations there later this year.
“The excavation hasn’t yet reached the full depth of the site,” Tornero said, “so the sequence is not completely documented.”
“This summer we will continue the archaeological work,” Tornero added.
For now, Cave 338 already shows that even some of the most remote areas of the Pyrenees could have played significant roles in the way ancient humans utilized the land and its resources.
“As such, the site provides a key reference framework for understanding high-mountain occupation, resource exploitation and mobility dynamics in the Pyrenees during later prehistory,” the authors write in their recent paper.
The team’s paper, “Beyond 2,000 meters, first evidence of intense prehistoric occupation in the Pyrenees,” appeared in Frontiers in Environmental Archaeology.
Micah Hanks is the Editor-in-Chief and Co-Founder of The Debrief. A longtime reporter on science, defense, and technology with a focus on space and astronomy, he can be reached at micah@thedebrief.org. Follow him on X @MicahHanks, and at micahhanks.com.
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