I think that evolution is good science. However, to my knowledge no one has yet found proof of a change to different species. We have found adaptation and mutation but I know of no species that has been proven to have "fathered" a new and separate species--genetically different. If I'm wrong, I would appreciate correction.
One of the most solid fundamentals of western culture has been our value of the individual. The source of this may be Christian in seeing the image and likeness of God in each other or philosophical from the Greeks and Romans but the result is the same. Evolution and its most ardent supporters tend to see this equation more in terms of usefulness and survival of the fittest. Before we bowed to the altars of Darwinism, human life had dignity in our culture. Now human life has utility or it is a burden to be lifted (eugenics and euthanasia).
That is why I say that evolution is useful science but Darwinism is a faith dangerous to our western culture. Disagree if you must, must I do not mean my criticism as a strawman nor as hyperbole.
You will never find a parent organism whose offspring was a totally different species - that wouldn't be evolution, that would be a miracle. (Please pardon me if I misinterpreted your statement.) Evolution is very slow change that has a net effect on populations over time periods so vast that the change from generation to generation is barely noticeable, if at all.