Explaining this sort of phenomenon by slight, successive modification, as Darwin envisaged, seems problematic.
All of this calls to mind a comment from biologist John Mattick, a critic of the junk DNA paradigm.
This is nothing short of a spectacular vindication of Stephen Meyer’s perspective in Darwin’s Doubt.
The birth of gene-edited children — which I discussed here just yesterday — has been confirmed.
Is it reasonable that two populations would independently hit on an adaptation by chance?