"Sex is what makes us human" is stupid. Almost every species fucks. Humans are the only species that jumps motorcycles over school buses that are on fire. Some other things too probably
Dr Irving Finkel holding a 3770-year-old tablet, that tells the story of the god Enki speaking to the Sumerian king Atram-Hasis (the Noah figure in earlier versions of the flood story) and giving him instructions on how to build an ark which is described as a round 220 ft diameter coracle .