I was reading Darwin and he discussed the concept of Domestication Syndrome (although it didn't have that name) at the time. Basically, we turned animals into sóyboys when we domesticated them. I looked it up because it was intriguing and I found this video which discusses a possible theory for why it happens
>https://youtu.be/R7flhfV31-0
Anyway, is it possible humans are doing it to ourselves as well?