It is manifestly clear that evolution does occur. Hundreds if not thousands of examples have been documented. But the operation of evolution, the way it works, actually indicates that complexity precedes loss of complexity; fully developed parts precede reduction of parts; and function precedes dysfunction.
Biology has now reached the bedrock which is the genetic system itself and how it brings about development in different organisms. Examples of modification can be documented down to the last DNA detail, and what they show is that mutation has switched off certain genes or the regulatory elements that control them in each case.
The idea that was becoming clear in my mind was that evolution presupposes creation. The original basic types were created with fully functional genomes and whole functional organs. These basic types have evolved in many ways and to very high degrees. While evolution has produced a great diversity of species here on Earth, creation was at the origin of complex life.
The exploration of this subject became the fire of my soul.
The Principles of Creation 