What kind of evidence would you like to see (best case scenario)? I'm willing to leave the word of God out of it, but would like to know what evidence you'd like for me to give that would be considered satisfactory.
Some sort of evidence that a barrier exists. Genetically "this far, but no further." Or a biochemical incompatibility that demonstrably couldn't be by common descent. Something of substance.
If the fact that it has never been seen or observed doesn't satisfy, what would?
If that's evidence, then we can rule out the idea that giant redwoods grow from seeds.
read your answer, that it was a combination of mutation and reinforcement (selection) because of predation, but beyond the relatively simple change in a single species
At some point, such variation becomes great enough that different populations can no interbreed and produce viable offspring.
Barbarian observes:
They are actually a number of different species. Most likely, geographical separation makes it happen, and two related species would probably not produce a hybrid fake as good as either of the two by themselves. So it can be a mode of speciation.
Allopatric speciation does not produce cross-kind types of change.
Seems to have done so in the moas. And marsupials. And apes. Among others.
Although things like:
Glacial ice sheets
Mountain chains uplifted
Major river course changes
Sea level changes
Warming climates resulting in a "push" of vegetation
Drying climates that change lakes (large single lakes into multiple smaller)
Large scale oceanic current change
Volcanism forming islands
... can all work to geographically separate individuals in a given population ... and this distancing can also be seen to produce consequent "speciation events" (like when brown squirrels "evolve" into black squirrels due to allopatric speciation) but I don't know of any new creature coming from it.
New Zealand, before humans found it, had no mammals other than bats (which began to evolve toward a terrestrial existence). The Moas had to fly there. And yet they are clearly a different kind than any sort of flying bird.
-- how does one biblical kind "evolve" into another?
Give me a testable definition for "biblical kind."
Barbarian observes:
The problem is, we don't have a testable definition of "kind." We can speculate, (the ICR thinks that it amounts to "family", but that puts humans and apes in the same "kind." Which is probably not what they intended.
In the case of onychophorans and arthropods, it seems to have been largely a process called "tagmosis", the reduction in, and modification of body segments. In the case of birds, it's mostly a matter of reduction in size, and exaggeration of traits already in dinosaurs.
Can we talk about some of those?
The bible mentions things that creep and crawl. Yes, lets talk about evidence that suggests that such creatures have evolved into things that do no longer creep nor crawl.
Sure how about onychophoran worms to bumblebees? If I can show you a logical path, with evidence, would that be two kinds?
Different phyla would be, right?
we leave the bible out of it (and I don't know why anyone would do that, because it is a valid source of observation) and if we don't consider absence of observation of any one kind of creature giving rise to another kind (biblical kind, that is) I would like to again ask, is there any way left for me to prove my theory?
Show us a barrier for genetic variation that rules out one of these transitions.
You be the expert here and go ahead and let me know how I might (best case scenario) point to satisfactory evidence. In other words, what evidence do the experts consider sufficient, what would be considered as "beyond a mere preponderance" and what would be considered as evidence "beyond any reasonable doubt"?
Show us something that could not have evolved. Of course, it's a bit of a problem establishing negatives. (logical certainty isn't required, just overwhelming evidence) But that's what you're proposing to do. Or, I suppose, if you could demonstrate in some manner that kinds were created de novo.
I don't know how do explain that, without making it sound like you need to verify the Easter Bunny.