Answer:
Where humans breath liquid?
Stealthy as a shadow in the dead of night, cunning but affectionate if given a bite. Never owned but often loved. At my sport considered cruel, but that's because you never know me at all.
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.
What is it that no man ever yet did see, which never was, but always is to be?
Known to accessorize with feathers, trumpets, and harps.
What do angels sing in the shower?