Answer:
Disgusting creatures that would survive a nuclear strike.
I'm a red creature from the sea with large claws, or pincers, and I'm often boiled and served as an expensive dish at seafood restaurants.
What kind of dog keeps the best time?
What has a horn but does not work?
Who is it that rows quickly with four oars but never comes out under his own roof?
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. Who am I?