If all extant beetles have descended from one pair on the Ark in the 4000 odd years since the Flood (assuming the dating to be correct - which I don't) then there has been a phenomenal rate of evolution within the "kind" (using the creationist term). A rate of approximately 350,000 divided by 4000, or 87 new species per year, assuming no extinctions as time elapsed, more if there were extinctions. But this is not going on now. So we must assume that in the past, the historical past, when people were recording things, new beetles were appearing at an even greater rate. Which has, for some reason, slowed down. The same sort of thing would have been going on with all other sorts of living things. There is no evidence for this, as far as I know.
Further, if the development of different species has happened since the Flood, then there should be a gradation of an increase in difference from those carried on the Ark such that the furthest creatures from Ararat should be most evolved, furthest from primitive. As the monotremes and marsupials are not. Or are we supposed to assume that the creationist form of evolution is a stripping of genetic code? That would explain, perhaps, that the mean marsupial genome size is greater than the mean placental genome size. Oh. No it wouldn't.

Penny (who was trying to keep out of this.)