P R O L O G U E:
Human emotion is a unique thing in the universe, now that science is trying hard to know its origin and its chemical basis but hardly found any reasonable answer to this... but human emotion, still being an enigma compel human to love each other, to share, to communicate with each other. most probably human started to flock together due to need of cooperation to survive in those harsh climate and for the self defense.
More or less we can conclude the togetherness, precursor to the feeling of friendship and from this point of view, staying together as a quasi-society in the early humanoid/ hominids are nothing but a pure evolutionary necessity.
