I prefer small numbers on left side of ruler because it's what I'm used to. The reverse being true for some eastern people isn't surprising. It makes curious why someone would go through hoops to answer this question. Did they really need to test this on oragutans, pigeons, and french people too? Seems extra for something most would shrug off as interesting random facts. Idk, feels like I'm missing context
By looking beyond averages, we see a richer story: Minds can be flexible and inventive, whether they belong to apes, birds or humans.