In my veiw every genome has a [built in?] variation potential. That is, a genome that functions as an information source which allows for a given species to adapt to environmental variations. The example you cited is good evidence for this. In the veiw of conventional evolutionism, this potential is an open-ended construct. There is no good empirical evidence for this, some would say there is no evidence. For example, could a horse evolve into a dog? The empirical evidence suggests otherwise. Horse evolution stops at the mule. Notice that I use "horse" in the "kind" sense, as is used in the Genesis account. There has been limited evolution from the "kind", a donkey is a kind of horse. I won`t debate that point. In short, the hybrid-state represents empirical evidence of an evolutionary dead-end. Also, you may note that the second law [with respect to information systems] is not violated in the creationist theory of evolution, no information was created, it existed, a priori, in the genome.