It's kinda cool how different animal species can mate and have hybrid animal babies. Like lions and tigers can make ligers, zebras and ponies can make zonies, and Nickelodeon can make CatDog. But while some hybrids are okay, others just don't work:
Obviously there can be no Bulldog and Shih Tzu mixture... but we've all known that since 4th grade.
Penguins and Ibises are both birds. That would work, right? Think about it.
Penguin + Ibis = Penis
Anything + Rooster = not good.
(Giant Panda + Rooster = Giant Cock)
(Gila Monster + Rooster = Monster Cock)
(Dinosaur + Rooster = Thunder Cock)
Sperm whales are pretty much out of the question.
Definitely can't breed donkeys with anything.
What a terribly juvenile post this was... I apologize.