Sex makes babies As far as we can tell, no other animal knows this. Did our understanding of baby-making change the course of human history? Holly Dunsworth & Anne Buchanan aeon.co 09 August, 2017 The Ain Sakhri lovers figurine. This is the oldest known representation of sexual intercourse in the world, dated c10,000 BCE. Photo courtesy of the Trustees of the British MuseumHol..