Appearance of a typical sewer rat is okay and the cutest allowable threshold.
Hairless is okay I suppose, but something patchworky, and looking like it’s somewhat diseased is preferred
The main criteria is that it’d be consistent. Every offspring has to be ugly. I know ugliness is subjective but I think I’ve gotten my point across as to what I consider ugly.
How would I go about doing this? What kind of mom and dad would I need that is readily available to buy?
Perhaps I can re-word this factual question in a way that will get me a factual answer:
“In the movies, when CGI is not used, where do they get the swarms of rats intended to gross the audience out? And how does the source produce those rats?”