Follow
"Ben Bacon analysed 20,000-year-old markings on the drawings, concluding they could refer to a lunar calendar. It led to a specialist team proving early Europeans made notes about the timing of animals' reproductive cycles." https://www.bbc.com/news/uk-england-london-64162799
@estherschindler
"archaeologists had been stumped by the meaning of dots and other marks on the paintings. So Mr Bacon decided he would try to decode them."