The twentieth century’s revolution in molecular biology has produced volumes of sequence data which evolutionists have marshaled in defense of their theory. One high-profile example is the molecular similarity between humans and chimpanzees. First proteins and later the genomes of these two species were found to be practically identical. These findings have often been touted as compelling confirmations of evolution. But there are also differences—significant differences. One example is the differences in the Y chromosome, which recent research has elucidated. These differences are explained by evolutionists, of course, as arising from various evolutionary processes. But the differences are significant and the evolutionary scenarios are speculative. In fact a recent paper appealed to several different mechanisms in order to explain the differences. Of course none of this is impossible, but the ease with which evolutionists can explain observations that are at various points in the spectrum (such as high similarity and significant difference) is an example of why some observers view evolution as a tautology. When I pointed this out evolutionists responded with a variety of protectionist maneuvers. Here is an example. Read more