The article discusses rock art aesthetics in response to an article by Marco Antônio Corrêa Varella, Altay Alves Lino de Souza, and José Henrique Benedetti Piccoli Ferreira. Topics addressed include connections between rock art and sexual selection, the relationship between human nature and evolution in relation to rock art, biological reasoning in palaeoart origins, and the gap between scientific and non-scientific disciplines.