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Beyond the debate over whether intelligent design is scientific, a number of critics argue that existing evidence makes the design hypothesis appear unlikely, irrespective of its status in the world of science. For example, Jerry Coyneasks why a designer would "give us a pathway for making vitamin C, but then destroy it by disabling one of its enzymes" (see pseudogene) and why he or she would not "stock oceanic islands with reptiles, mammals, amphibians, and freshwater fish, despite the suitability of such islands for these species". Coyne also points to the fact that "the flora and fauna on those islands resemble that of the nearest mainland, even when the environments are very different" as evidence that species were not placed there by a designer.[SUP][63][/SUP] Previously, in Darwin's Black Box, Behe had argued that we are simply incapable of understanding the designer's motives, so such questions cannot be answered definitively. Odd designs could, for example, "have been placed there by the designer ... for artistic reasons, to show off, for some as-yet undetectable practical purpose, or for some unguessable reason". Coyne responds that in light of the evidence, "either life resulted not from intelligent design, but from evolution; or the intelligent designer is a cosmic prankster who designed everything to make it look as though it had evolved".[SUP][63][/SUP]