These may be the oldest known examples of cave art. They predate humans’ arrival in Europe by at least 20,000 years. https://t.co/OgCSGKSIPg http://ow.ly/i/DbQwc
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These may be the oldest known examples of cave art. They predate humans’ arrival in Europe by at least 20,000 years. https://t.co/OgCSGKSIPg http://ow.ly/i/DbQwc