Taking the facts and arguments presented together, it appears to be clear that no macroevolution is happening in “Darwin’s finches.”
This is by no means an all-or-nothing selection (as the impression is sometimes given). Rather, the alleles are retained.
They are not, per the National Academy of Sciences, a “particularly convincing example for speciation.”
In a series of posts starting today, I offer some notes on the question of whether macroevolution is happening on the Galápagos Islands.
Is there a paradigm change coming in evolutionary studies? Nothing fits the data better than intelligent design.