Originally Posted by Ringman

Nice try. You are trying you switch meaning and are failing. Adaptation is not evolving to a higher order of animal.
Who said higher? You did in fact accept that the two extant species of rhinoceros, the tapir, and the three extant equine species had a common ancestor. It's recorded here in this thread. That's not mere change by adaptation of two strains of the same species to different environments. That's speciation. I asked how, and you said by the process of adaptation. So you admit that adaptation can take us further than mere adaptation of the same species to differing environments. Not only that, but even beyond the same family. We are now at the order level of variation, yet still accepting a common ancestor of them all.

I'm sorry, buddy, but you are now a proponent of Darwinian evolution (congrats). You're way past intra-species variation by adaptation (all that any Creationist is willing to accept). You're even past inter-species variation by adaptation. You've entered into intra-order variation by adaptation. You are solidly within the evolution camp now, whether you're aware of it or not.

If species of different families within the same order can be related (something you've admitted to here), why not species only sharing a class? After all, if it's possible to walk ten yards it's possible to walk ten miles.