Max Farjon COLUMN
Human has originated from an animal species that looked very like a monkey. It was an animal species that populated Africa South of the Sahara, he lived largely in trees. By a natural phenomenon a small part of that immense population was forced to leave the tree because the forests changed into Savanna's where hardly any trees grow.  
He had to do without trees and was forced to move on two legs. Thus the beginning of the current man was born. 
The remainder of the population stayed to live in the tree up to the present day.
Those bi-peds were forced to live in a clod to defend himself from predators and the elements. Our predecessors lived formerly also in groups but still much further from each other.  Living in a group is safer because there are more eyes to discover impending doom in time, one came by food easier because what the one does not see, the other does. The members learn from each other the tricks to get something done. In a group you catch prey better.
One lives there more at ease, although another discomfort comes in its place. Namely the tensions that arise from competition, and status enforcement. Those count, however, less than the chance to lose your hide or to obtain food easier. One indicates this group existence at chimpanzees with a fission-fusion society (there are at the same time separating and binding forces within a group).  
This greater compactness due to the disappearance of trees forced them to new rules of conduct. The old rule: "everyone for himself" caused too much "fission"  in a compact living group.
To survive as a group they had to do more for each other. Altruism arose so pure as a base for survival and not because they found each other autonomously nice and sympathetic. The latter arose because then it appeared that you survive better as a group.
In other words: If within a group too much zeal and envy existed then this was doomed to disappear. They did not manage protective tasks that were necessary on the ground, they were eaten or perished by shortage.



©Max Farjon 2017
Leende, 35, 2017