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Darwin's finches show only microevolution (Talk.Origins)
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Darwin's finches show only microevolution. In a long-term study, the changes were small and oscillated back and forth. They show no evidence for macroevolution. Source: Yahya, Harun, 2003. Darwinism Refuted, The true origin of species.
(Talk.Origins quotes in blue)
1. The extensive work on Darwin's finches done by the Grants shows in some detail how microevolution works, including details of transmutation and the power of natural selection. In the years that the Grants have been studying the finches, we would not expect to see macroevolution.
All this shows is that the claim as written is correct. The fact that they oscillated back and forth, demonstrates that changes observed are just part of the finches' pre-existing genetic potential.
2. Darwin's finches show a pattern of morphological differences that indicate that they all derived from a common ancestor.
That is probably an accurate conclusion, but that common ancestor was still a finch. It is reasonable to conclude that all finches are members of the same Created kind.
The difference between the woodpecker finch and the large ground finch are about as great as those within the whole finch family. Darwin's finches do not show macroevolution occurring, but they are evidence that it has occurred.
Talk Origins can call it evidence for macroevolution all they want, but the real point is that they are all finches and their common ancestor was a finch. Actually their common ancestors would have been the seven finches that came out of Noah’s Ark.