faithtransforms said:
Exactly, that is what I understand to be the difference between "micro" and "macro" evolution. As a creationist, I believe 100% in natural selection, I just reject the idea of trans-speciation.
However, there seems to be ample evidence of such trans-speciation, demonstrated in both the fossil record, the phylogenetic hierarchy and in ring species as in the example previously referred to. If you are happy with the actuality of microevolution, i.e. changes within species, I wonder what biological mechanism you see as preventing macroevolution from occurring, what evidence there is for the existence of this mechanism and how it can be identified?