Part of the problem may be that some people believe that if they write in more complex and longer sentences they can argue utter nonsense and lesser minds will actually believe that someone who can write such complex and long sentences actually knows what they are talking about. NOT!!
One of the most interesting aspects of evolution is the economy which is explained so well in Endless Forms Most Beautiful. Apparently genes are modified and reused over and over again over the ages. The segmented earthworm body becomes the segmented insect or crustacean body, becomes the fish, amphibian, reptile, mammal spinal cord, etc. There are many such reusings meaning mutations don’t have to start from scratch as it were.
Whether or not you believe God did it or unknowing nature, it is nevertheless awesome and worthy of reverence!!
As I noted above, that is basically a fairytale; that's the part of it which went down with the fruit fly experiments.