At Why Evolution Is True, Jerry Coyne pictures a newly rediscovered and rather unhandsome fly native to a particular rock in Kenya (and nowhere else) where it sports about in the bat guano deposited in a cleft in the rock. The fly has only vestigial wings — “evidence for evolution, of course,” notes Dr. Coyne. Isn’t it interesting how “evidence for evolution” tends to be, as in this example, evidence not for the building up of new functionality but for its loss, where the loss has some adaptive advantage? Losing information is one thing — like accidentally erasing a computer file (say, an embarrassing diplomatic cable) where, it turns out in retrospect, you’re better off now that’s it not there anymore. Gaining information, building it up slowly from nothing, is quite another and more impressive feat. Yet it’s not the loss of function, and the required underlying information, but its gain that Darwinian evolution is primarily challenged to account for.
That’s the paradox highlighted in Michael Behe’s new review essay in Quarterly Review of Biology (“Experimental Evolution, Loss-of-Function Mutations, and “The First Rule of Adaptive Evolution“). It’s one of those peer-reviewed, Darwin-doubting biology journal essays that, as we’re confidently assured by the likes of the aforesaid Jerry Coyne, don’t actually exist. Casey Luskin has been doing an excellent job in this space of detailing Michael Behe’s conclusions. Reviewing the expansive literature dealing with investigations of viral and bacterial evolution, Dr. Behe shows that adaptive instances of the “diminishment or elimination” of Functional Coding ElemenTs (FCTs) in the genome overwhelmingly outnumber “gain-of-FCT events.” Seemingly, under Darwinian assumptions, even as functionality is being painstakingly built up that’s of use to an organism in promoting survival, the same creature should, much faster, be impoverished of function to the point of being driven out of existence. Jerry Coyne’s Kenyan fly may then be the opposite of “evidence for evolution” of the kind that Darwinists really need.
So far the masters of evolutionary apologetics have ignored Behe’s damaging article. [Update: Coyne has now done so. More anon.] Trying to imagine what they would or will say if they can ever carve out the time from a busy schedule to read it, I posed a few questions to Dr. Ann Gauger, developmental biologist and senior research scientist at Biologic Institute.
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