I loved the dog one, that said, it did need a few modifications; more dogs should have been labeled 'little dog' on the male side, the average dude could identify a Doberman or Rottweiler or German Shepherd, and in the interest of fairness (and truth!) there should have been a silhouette of an English Bulldog that read 'ugly dog' on the girl's side and 'bulldog' on the guy's side. 'Shark dog' was pretty awesome, though, as well as OMG FUCKING EIN. And by awesome I mean true. :D
Needed a chihuahua entry to explain why females/anybody would give any fucks about those fuckers (male entry would probably have been 'the Taco Bell dog'/'hideously obnoxious fuckers').
If my (male) anthropology professor is any indication chihuahua would be labeled on the male side as 'kickable dog'.