[Right Wing Professor]

Breeds of dogs can't interbreed, they're all still dog

Boy, you are truly separated from reality, aren't you? Has the word 'mongrel' ever wandered in between your shrunken cerebral hemispheres?

[Havoc]

"Boy, you are truly separated from reality, aren't you"

Mongrel = mut = dog. Four legs, ears (floppy, pointed, etc), tail (stumpy or long, shaggy or not), Four legs, long or shor snout, barks at things or yips.. Dogs, as opposed to fish which are not mistakable for a dog any more than, say, a pig.
As your feared "dangerous" (as someone else put it) Kent Hovind would note, a 4 year old knows the difference. It appears it takes pointy heads with degrees and evo ideology to be uncertain.