First warm blooded fish found. :)

[Soothing Shrimp]

http://www.huffingtonpost.com/2015/05/14/opah-warm-blooded-fish_n_7286712.html

[RyeGuy411]

Very cool that thing is awesome looking.

[High5's]

 Super cool. I wonder how long it took for it to evolve from cold to warm blooded.

[Shrimple minded]

Soothing is being modest, he told me he selectively bred them, I think he said it took like two years ~.^

[forumsnow]

Tuna are warm blooded

[wot_fan]

Tuna are warm blooded

From the linked article

Other fish, like tuna -- agile predators near the top of the food chain -- can warm their muscles through similar processes, but their bodies cool when they dive to deep depths. They must return to the surface to warm back up, NOAA said. But the opah uses a unique set of gills that resemble a car radiator, which allow the fish to stay in cold depths full time.