Have you heard this new Creationist claim?

I got into a "discussion" with an ID'er/Creo-tard, and heard this gem, its a new low... South Park's parody of retarded fish frogs sodomizing monkeys wasn't far off

"dogs ******* cats and producing Dats or Cogs would be evolution, you know, humans evolving from snails, new species, as opposed to the same species without a single major physical difference from the old species."