On FSTDT, we have our own saying that we took from futurama. When a fundie explains evolution or the big bang wrong, as not a single one of them has gotten it right, we say that or a variation thereof. For instance: the big bang does not work that way!
Evolution explains something observed in nature: species are not fixed. Through different environments in nature, species adapt over time into completely new types of animal. Or just die out, but the ones we care about are the ones that adapted.
Anyway, evolution seems to be a pretty simple concept, yes? Well, groups like Answers in Gensis have been fighting it since like the 1980s and still don’t have a firm grasp on it.