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A population hub out of Africa explains East Asian lineages in Europe 45,000 years ago

A recent study published in Genome Biology and Evolution found that ancient human remains from Bulgaria are more closely related to contemporary East Asians than Europeans. The researchers propose a scenario where an African population hub expanded into Europe and East Asia around 45,000 years ago, with the European representatives dec...

SourceUniversità di Bologna·JournalGenome Biology and Evolution·DateApr 7, 2022

Orangutans instinctively use hammers to strike and sharp stones to cut

In a study published in PLOS ONE, researchers found that untrained captive orangutans can complete two major steps in making and using stone tools: striking rocks together and cutting using sharp stones. This suggests that the use of stone tools may have existed in our last common ancestor with orangutans 13 million years ago.

SourcePLOS·JournalPLOS ONE·TypeExperimental study·DateFeb 16, 2022

Using rocks to hammer out a connection between visual gaze and motor skills learning

A new study published in Communications Biology found a significant connection between visual gaze and motor skills learning, as participants learned to make stone tools through video training. The researchers discovered that the connection evolved over time, with certain phases of learning being more closely tied to gaze patterns.

SourceGeorgia Institute of Technology·JournalCommunications Biology·TypeObservational study·DateNov 17, 2021

Study suggests earliest use of bone tools to produce clothing in Morocco 120,000 years ago

Researchers at Arizona State University have discovered a worked bone assemblage found near the Atlantic Coast of Morocco dating back to 120,000 years ago, suggesting the manufacture of clothing during this period. The find provides strong evidence for the emergence of complex culture and specialized tool manufacture in early humans.

SourceArizona State University·JournaliScience·TypeObservational study·DateSep 16, 2021

New archaeological discoveries highlight lack of protections for submerged Indigenous sites

A new study highlights the need for a national policy to protect submerged Indigenous sites, which are at risk due to climate change, dredging, and seabed mining. Archaeological discoveries off the Pilbara coastline in Western Australia have uncovered ancient stone tools, rock art, and engravings dating back over 7,000 years.

SourceFlinders University·JournalAustralian Archaeology·TypeSurvey·DateAug 30, 2021

The world's earliest stone technologies are likely to be older than previously thought

Researchers have found that Oldowan and Acheulean stone tool technologies are likely to be tens of thousands of years older than previously thought. Using statistical modeling techniques, the study estimates the origins of these early stone tools at 2.617-2.644 million years ago for Oldowan and 1.815-1.823 million years ago for Acheulean.

SourceUniversity of Kent·JournalJournal of Human Evolution·DateMar 24, 2021

Neanderthal and early modern human culture co-existed alongside older traditions for 100,000 years

Research reveals the Acheulean stone tool tradition persisted for tens of thousands of years longer than thought, overlapping with Neanderthal and early modern human cultures. The study used statistical techniques to reconstruct the end of the Acheulean period, shedding new light on the transition between technologies.

SourceUniversity of Kent·JournalHumanities and Social Sciences Communications·DateMar 1, 2021

Oldest flaked stone tools point to the repeated invention of stone tools

Researchers discovered ancient stone tools in Ethiopia, older than previously known evidence, suggesting that humans invented stone tools multiple times throughout history. The tools, dated to around 2.6 million years ago, show a significant shift in tool-making skills and accuracy, highlighting the complex origins of human innovation.

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateJun 3, 2019

HKBU scholar discovers strong evidence for links between drying climate and human evolution

African lake sedimentary cores revealed a continuous record of climate change extending back one million years, linking aridification to technological and evolutionary changes in early humans. The research suggests that climate variability drove human migration and the development of new tools, providing a selective pressure for survival.

SourceHong Kong Baptist University·JournalProceedings of the National Academy of Sciences·DateOct 9, 2018

Drier, less predictable environment may have spurred human evolution

Researchers found evidence of a variable but progressively drying climate coincides with a major shift in stone-tool-making abilities and the appearance of modern Homo sapiens. A continuous environmental context was provided for the diverse archeological evidence recovered from nearby localities in the rift valley basins of southern Ke...

SourceUniversity of Arizona·JournalProceedings of the National Academy of Sciences·DateOct 8, 2018

Salted fish in Maya economy

The study found that a majority of ancient Maya chert stone tools showed wear patterns consistent with fish preparation, indicating preserved fish was an important component of their trade economy. The researchers estimated that each salt kitchen could provide dietary salt for up to 3,444 people per day if used for fish preservation.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateOct 8, 2018

Easter Island's society might not have collapsed

Recent study analyzes chemical makeup of tools used to create giant statues, suggesting a sophisticated society where people shared information and collaborated. The results contradict the popular narrative that Easter Island's inhabitants ran out of resources and warred themselves into extinction.

SourceField Museum·JournalJournal of Indo-Pacific Archaeology·DateAug 13, 2018

New approach measures early human butchering practices

A team led by Purdue University anthropology professor Erik Otárola-Castillo used 3D imaging, shape analysis, and Bayesian statistics to accurately measure animal bone cut marks with an 88 percent success rate. This technique improves upon existing archaeological methods, enabling a more accurate understanding of human evolution.

SourcePurdue University·JournalJournal of Archaeological Science·DateDec 6, 2017