
An engraving found at a cave in Gibraltar may be the most compelling evidence yet for Neanderthal art.
The pattern, which bears a passing resemblance to the grid for a game of noughts and crosses, was inscribed on a rock at the back of Gorham's Cave.
Mounting evidence suggests Neanderthals were not the brutes they were characterised as decades ago.
But art, a high expression of abstract thought, was long considered to be the exclusive preserve of our own species.
The scattered candidates for artistic expression by Neanderthals have not met with universal acceptance.
However, the geometric pattern identified in Gibraltar, on the southern tip of Europe, was uncovered beneath undisturbed sediments that have also yielded Neanderthal tools.
http://www.bbc.com/news/science-environment-28967746