From what i've read so far, most that have spoken against evolution are merely citing improbabilities. I don't see however, point-per-point arguendos or counter-evidences presented by any of the creationist scientists today (although i don't know if they should be called scientists in the first place) who refute the mechanics of the evolutionary process itself. I can only surmise it is just too difficult for them to challenge the wealth of scientific evidence at hand.
The Evolutionary Process: Adaptation > Genetic drift > Gene Flow > Mutation > Natural selection and Speciation are all supported by overwhelming evidence pointing to Common Descent or evolutionary synthesis. (You may refer to wikipedia or an encylopedia to know more about their individual definitions). It's strange and quite observable that most creationist scientists dismiss altogether the idea of evolution without digging at how evolution actually takes place.
Furthermore, a very good example pointing to the validity of evolution is the horse from Hyracotherium (45-52 Million Years ago) to Equus (Modern-day Horse) substantiated by the vast amount of unearthed fossils discovered by paleontologists since the 19th century.
Wikipedia has fairly provided a good discussion on the
Evolution of the Horse or you may find the evidence of evolution, also found in horses, presented by Tufts University
HERE
It isn't only the horse or humans that have evolved from a common descent but most of the animals that we know of today. If one has to examine or trace the evidences at hand, you can deduce that practically all of them follow the same pattern.
I believe in God and I believe that God is also a god of process...and we see all these processes everyday unfolding before man FROM: seed to trees; a fertilized egg to human and from such other examples. It isn't shameful or humiliating for humans to have "simian" origins (if you will) "transmuting" into a much better kind because it is part of the Natural Law for species to perpetuate its own kind in their best possible physical form in the long term.
Frankly mas mauwaw pako kung gikan ko sa semelya kay sa gikan ko sa unggoy.
It's likewise logic-defying to believe that a "creator" had to cause man to just pop out of nowhere and then cause the existence of another (man) when the same creator can just easily pop out many of them like popcorns, right? Do creationists also have their scientific explanation as to why the creator all of a sudden entrust the "re-creation" to man? Or did creationists find any recorded conversations with God as to why He had instructed man to "Go to the world and multiply" and why God had to stop creating them?
Looks like they got it (the Bible) all wrong.