A cross. The animals around it have no effect on its name duh.
It doesn't matter what you call him, he isn't coming.
Sparky
Because Intermediate value theorem
Because he was crossed.
A mallard-y
It's Always Sunny in Philadelphia.
Baby giraffes.
An animal that puts you out a night!
A slow poke!
Wheeeeeeeeeeeeeeeeeee!!!
A pan. Duh!
"F," for Fonzi. Duh.