You know how evolution deniers always claim that we never see evolution happening, so it's just imaginary, made up to deny the non-materialistic answer? It's a stupid argument ("We can't see gravity, so it's just something antireligious people made up to deny that angels move the planets around") but not only is it illogical, it's contrafactual.
As reported in the National Geographic online, scientists transplanted some Italian lizards to an island off the coast of Croatia in 1971. Now, in 2008, their descendants have radically evolved, from insectivores to herbivores, developing "cecal valves" that let them digest cellulose, along with changes in head anatomy that let them consume tough plant matter.
Major anatomical changes in about 30 generations. Ben? Ben Stein? Do you want to do a crockumentary about that, or will you ignore it to make irrelevant Holocaust accusations?
Of course, to actual biologists this is a very interesting experiment in terms of MacArthur's and Wilson's work in island biogeography. I look forward to future reports.