Opah

Opah (moonfish, kingfish, or sunfish) are large, colorful fish. They are in a small family, the Lampridae. The family has only two living species in one genus, Lampris.
The opah is the only known fish that is completely warm-blooded. 
One species lives in tropical or temperate waters in most oceans. The other species lives in the Southern Ocean. 
Opah are not often caught by recreational fishermen.
Opah flesh has a light pink-to-orange color. The flesh turns white when cooked.