Feivel,
I’m a little confused. You keep claiming that evolution has no logical basis. Then you point out that it’s foundations are entirely logical, up to one point you don’t explain. So let’s see:
1) There exist variation in nature
2) Variations are passed down
3) Those variations best adapted to the environment of the organism will be most successful, and thus the organisms will move in that direction.
4) Repeat 1-4.
You’re fine with this, but claim it could not possibly lead to grand scale change between species. With enough time, how could it possibly do anything else?
Your Microsoft Word analogy is dishonest; you’re looking for it to turn into something else. Evolution doesn’t aim to turn sheep into zebras, though. The point is that an organism keeps changing in slight ways, and those changes as up, as they would have to. So can you please pinpoint the illogic here? It seems you earlier admitted that evolution poses no real problem to anyone who believes Hashem is guiding it, and now you have here shown no case for why it is “illogical” (actually, you outlined the logic of natural selection fairly nicely).
As to whoever asked why there are still older species around today–natural selection is more complicated than that. The point isn’t that one species “defeats” another. That’s a misperception of it. The question is which groups are best adapted to a particular environment, so a species can “splinter.”