It is not what you would expect if a designer had surveyed the whole animal kingdom and picked and chosen - or “borrowed” - the best proteins for the job, wherever in the animal kingdom they might be found. Once again, this is exactly what you would expect if you were dealing with a true family tree. And the important result is that every gene delivers approximately the same tree of life. What turns this into extremely powerful evidence for evolution is that you can construct a tree of genetic resemblances separately for each gene in turn. He wrote:Ĭomparative DNA (or protein) evidence can be used to decide - on the evolutionary assumption - which pairs of animals are closer cousins than which others. He described it as “extremely powerful evidence for evolution.” At the time, he apparently believed that each gene really did give approximately the same tree. In that case, he says, genes would not all give the same tree of genetic resemblances.ĭawkins offered this test in his 2009 book, The Greatest Show on Earth: The Evidence for Evolution. The test that Dawkins has formulated goes this way: He says that if Darwinian evolution is correct, every gene in a group of organisms will give “approximately the same tree of life.” If ID is correct, on the other hand, the designer could have “picked and chosen” the “best proteins for the job” in each organism. Will he accept that conclusion and come out as an ID proponent? Now, however, taking into account accumulating scientific evidence, the same test demands a conclusion of intelligent design (ID). For his part, Dawkins has repeatedly described a test that at the time he thought proved evolution. As evidence comes in, the prediction can be shown to be true or false. Scientists often work by making predictions.
In light of his position, here is a question someone ought to put to him. He has made some strong statements about the nonexistence of a designer behind life, including in his bestselling book The God Delusion. Richard Dawkins is famed as an evolutionary biologist and as an aggressive advocate for atheism.
FREE: Download the free mini-book “Top Five Evidences for Intelligent Design,” by geologist Casey Luskin, by going here.
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