You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.

Category: U.S. ENDANGERED SPECIES 
Clue: It's not only the chinook; the sockeye species of this fish is endangered also
salmon

Category: PAINT YOUR WAGON 
Clue: The body of a Conestoga wagon was the Prussian shade of this
blue

Category: "D"-VIDE 
Clue: In the book of Revelation, he rides the pale horse

death