In the episode of Phineas and Ferb that was just made available for my watching, Doofenschmirtz turns himself into a platypus.
This is one of those times when I hate how fandom has corrupted me. Because my first thought. My very first thought, was: "oh hey, Doof and Perry shippers must be feeling pretty vindicated round about now."
Which continued on with, "these two can now easily have sex, without it being bestiality."
I don't... I don't really know how to feel about my mind automatically skipping in that direction.