Well, of course it has changed since the beginning of the century, when they were discovered, but it can tell us different ways of looking at rock art which are not our way of looking at rock art.
Bistan da, XX. mende hasieran deskubrituak izan zirenetik aldatu egin da, baina lagungarriak izan daitezke gureetatik hain urruti dauden ikuspuntuetatik haitzuloetako arteari so egiteko. Adibiderik baduzu?