I have learned that evolutionary process is so complex but then, it holds great significance to us humans. Starting from the writings and theories of Charles Darwin,
Darwin's Theory of Evolution - The Premise
Darwin's Theory of Evolution is the widely held notion that all life is related and has descended from a common ancestor: the birds and the bananas, the fishes and the flowers -- all related. Darwin's general theory presumes the development of life from non-life and stresses a purely naturalistic (undirected) "descent with modification". That is, complex creatures evolve from more simplistic ancestors naturally over time. In a nutshell, as random genetic mutations occur within an organism's genetic code, the beneficial mutations are preserved because they aid survival -- a process known as "natural selection." These beneficial mutations are passed on to the next generation. Over time, beneficial mutations accumulate and the result is an entirely different organism (not just a variation of the original, but an entirely different creature).
then to the hierarchy of our said "Ape ancestors"
and moving on to the different realizations of how OUR BRAIN work,

and how we interact with one another for SURVIVAL by means of adaptation, conformity, unity, understanding, helping, labor, dominance and SOCIALIZATION..
Evolution connotes not only what happened in the past but of what is happening in the present as well. It can sprout from a single-celled organism, then to species, then to a population, then to community, and down to a bigger ecological interaction of different lives. Looking back to the hundreds of words typed and stated by my fellow classmates, I reckon that the study of evolution is dynamic, and the mystery of our origin and evolution still continues and this quest is indeed, unending. (reference: myself)
Reference to the pictures and some other sentences:
http://www.sixthman.net/blog/wp-cont...-763982-11.jpg,
Darwin's Theory Of Evolution