ABSTRACT
There are several basic problems indicated in Dr. Mixter’s paper that have too often gone unanswered by evangelical Christians. The first of these is that “species can change into other species”. To a Christian that has been brought up to defend the concept of fixity of species this may sound like a shocking statement. The common ancestor of members of a family or order is not so directly observable but on the basis of the tendency of organisms to vary, the amount of time involved from the geological record, and the probable changes that have taken place in the environments during that time, it is not unreasonable to interpolate to the recognition for the common ancestry of the members of these groups. The evidence for common ancestry at the level is based on analogy, interpolation, and an extremely incomplete fossil record.
