Answer:
What jumps when it walks and sits when it stands?
Looks like a hippo crossed with a unicorn.
What animal would you get crossed a duck, a beaver, and an otter?
The signature stroll of ducks and penguins.
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.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.