The questions of evolution have been a thorn in the side of many scientific and religious bodies since they were first suggested by Charles Darwin, to this day those questions have been referred to as theories.
As far as I am aware, the scientists are in agreement that AT SOME POINT in mankind's development there was a significant leap forward which led to a rapid surge in intelligence.
In recent years, various theories have been offered as as explanation of this phenomena, none of which can be conclusively stated as fact.
If you were to discuss the matter with Tom Cruise, he would regale you with the benefits of Scientology, he believes he has the answers, good luck to him.
If you discuss the matter with a scientist, he will bore you to tears with a host of conflicting opinions (certainly emphasizing his own) which he believes in, good luck to him also.
If you discuss the matter with a clergyman, you will also hear of HIS beliefs, good luck to him too.
Now we should apply our own thoughts to the matter, I personally think I have a method of making a fair assessment by observing the behaviour of my fellow man, I will supply you with a very small example of such (Before I retire for the night).
I asked one of my workers to search through a large box of assorted nuts and bolts for a particular one, I watched him shuffling the contents of the box from one end to the other, suddenly, he made a grab for the one he was seeking, his movement was identical to that which you would expect from a monkey seizing a nut and I am inclined to believe that some of us (myself included) are descended from the apes.
If any one of you in a similar situation, can honestly say you would react differently, you should talk to Tom Cruise.
If any of you are unsure as to how you would react, conduct a similar experiment or talk to a scientist.
If any of you are not concerned about exploring the various possibilities of our existence, you may either dismiss the subject or discuss it with a clergyman.
As to the question put to those of the Muslim faith in this thread, I am bound to say that the words of Sheikh Ahmed Deedat are the most profound yet simplest of all when he declared, "Allah commanded that it should be so and so it was !"
Now, put that in your pipe and smoke it.