Cave paintings are a type of parietal art (which category also includes petroglyphs, or engravings), found on the wall or ceilings of caves. The term usually implies prehistoric origin, and the oldest ...
Discovering any collection of Paleolithic art is rare, says Aitor Ruiz-Redondo, an archaeologist and senior lecturer at the University of Zaragoza in Spain: Only about 400 such sites have been found ...