Answer:
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.
What has a horn but does not work?
Looks like a hippo crossed with a unicorn.
I'm not a pet with long floppy ears I just share their name when a ship disappears. What am I?
What kind of fish chases a mouse?
What made Cyclops quit teaching?