Prospect wrote:Aineo wrote:A lot of what Darwin wrote in The Origin of Species has been replaced with newer theories. As to there being no solid criteria for differentiating between varieties and species, I suggest you review a site of taxodermy since there is solid criteria for differentiating between phyla.
Well, depends what you mean by solid criteria. For example, the criteria for determining species is whether two of the same creatures pro-create. This cannot apply to asexual reproduction, so its not as solid as it seems.