Mystery of 2 million-year-old stone balls solved
Here's how ancient cave dwellers used these stone balls.
By Laura Geggel, Live Science
[www.livescience.com]

We May Finally Know Why Early Humans Kept
These Mysterious Stone Balls Around
Michelle Starr, Science Alert, April 17, 2020
[www.sciencealert.com]

The open access paper is:

Assaf, E., Caricola, I., Gopher, A., Rosell, J., Blasco, R.,
Bar, O., Zilberman, E., Lemorini, C., Baena, J., Barkai,
R. and Cristiani, E., 2020. Shaped stone balls were
used for bone marrow extraction at Lower Paleolithic
Qesem Cave, Israel. Plos one, 15(4), p.e0230972.
[journals.plos.org]
[www.researchgate.net]
[www.researchgate.net]

Yours,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)