https://www.sciencesetavenir.fr/archeo-paleo/anthropologie/neandertal-premier-peintre-de-l-humanite_121540
http://www.sciencemag.org/news/2018/02/europes-first-cave-artists-were-neandertals-newly-dated-paintings-show
http://www.repubblica.it/scienze/2018/02/22/news/l_arte_piu_antica_e_dei_neandertal-189483683/?refresh_ce
https://es.gizmodo.com/las-pinturas-rupestres-mas-antiguas-del-mundo-estan-en-1823239893
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