Somehow ! we do believe in Darwin's Theory Of Evolution.
Humanbeing changed himself with the time :-)
Either God did play a role after sending him down. maybe He allowed to do it in a Haram way. ofr maybe Human evoluted with time.
We have to choose one of the three above concepts.
see, if Allah doesnt say anythin about it in the quran, n we dont believe in darwin's theory, then we shouldn't discuss the topic until further research proves somethin more acceptable... n btw its possible that Allah might hav sent azaab on humans (after hazrat Adam's time)n they became monkeys, then they slowly evolved as humans once more... i know it makes little sense but could be a possilbility..