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From
Haaretz:
Stone artifacts painstakingly shaped into spheres
were part of the daily lives of early humans for more than two million
years. They have been unearthed by archaeologists in East Africa,
humanity’s ancestral home, and they litter prehistoric sites across
Eurasia from the Middle East to China and India. Yet experts have been
puzzled by their function since the early days of research into our
evolutionary history.
Now, an international team of
archaeologists led by Tel Aviv University archaeologist researcher Ella
Assaf, has produced evidence that these enigmatic artifacts were used
for a very specific purpose: breaking the bones of large animals to extract the nutritious marrow inside. The study, published last week in the journal PLOS ONE,
highlights how an elegant technological solution that allowed hominins
to increase their calorie intake endured for hundreds of thousands of
years and continued to be used even as our ancestors developed new
techniques and created more complex societies. (Read more.)
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