Honest And Open Question
I have always had a question for evolutionists of the Neo-Darwinian persuasion that I have yet to have cogently answered.
I thought of it when reading Coyne’s Why Evolution is True. Coyne states,
“if evolution meant only gradual genetic change within a species, we’d have only one species today—a single highly evolved descendant of the first species. Yet we have many… How does this diversity arise from one ancestral form?” It arises because of “splitting, or, more accurately, speciation,” which “simply means the evolution of different groups that can’t interbreed.” - Coyne, Why Evolution Is True, pp. 5-6.
Here is my question, if speciation involves mutation that creates a new species that can no longer interbreed (since otherwise all life really would all be one genetic species with only varied morphology), then how does an advantageous mutation get spread?
If parent species A births an offspring B with such a significant mutation as to be a new species and incapable of breeding with species A, then how would B reproduce? Would there need to be the EXACT same mutation at the same moment in history and in the same geographical location so that male-B would find female-B and copulate?
I really do hope that someone can explain this since this is one problem with evolution that just seems so fundamentally flawed that I doubt no one has addressed it. Any thoughts?