The early bird might get the worm, but the second mouse gets the cheese.
Why do hummingbirds hum? Because they don't know the words.
Q: Why do birds fly South for the winter?
A: It's too far to walk.
Q: What happens when you cross a shark with a cow?
A: I don't know but I wouldn't milk it.
Two caged circus lions break free and corner a clown in his dressing room. One lion says to the other, "Forget it, those things taste funny."