Ancient Cave Artists May Have Knowingly Deprived Themselves of Oxygen to Paint


Some of the oldest human art in Europe is entirely hidden from sight, tucked away in the narrow crawl spaces of deep, dark, and winding caves.

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Read the rest of this article: 

https://www.sciencealert.com/ancient-cave-artists-might-ve-knowingly-deprived-themselves-of-oxygen-to-paint

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