When you say “fairly new” what timeframe are you thinking about? Just because we have a ton of evidence of humans collaborating as far as historical artifacts

When you say “fairly new” what timeframe are you thinking about? Just because we have a ton of evidence of humans collaborating as far as historical artifacts go back. But then of course with the appropriate perspective almost everything is fairly new. Would you call Göbekli Tepe fairly new for example? After all 9000 BCE was just yesterday compared to the invention of multicellular life for example. Which is also massively about cooperation.