Answer:
Though desert men once called me God, today men call me mad. For I wag my tail when I am angry. And growl when I am glad.
Long and slinky like a trout, never sings till it's guts come out.
What can touch someone once and last them a life time?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
I am the heart that does not beat. If cut, I bleed without blood. I can fly, but have no wings. I can float, but have no fins. I can sing, but have no mouth.
What language does a billboard speak?