How did we acquire human-ness? I mean erect posture and bipedal locomotion; manual dexterity and increased tool use compared to other animals; and a general trend toward larger, more complex brains and societies. What enabled our ancestor species to create complex social structures composed of many cooperating and competing groups, like families, kinship networks, and political states? Why did our ancestors start social interactions between themselves, or establish an extremely wide variety of values, social norms, and rituals, which together have come to form the basis of human society?
Most common answers pointed to changes in living circumstances. Like access to food surplus, domestication of animals, and the use of metal tools, leading to the formation of permanent human settlements.
Our forefathers seem to have continued to live in settlements. Perhaps, domestication of wild lfe would have been better when our forefathers lived thus. Over a period of time we lost our ability to confront life on our own, unlike all other species. And we had to continue living as a settlement to enjoy domesticating ourselves, and many other forms of life. And whatever we see today as human-ness is the result.