That fish has had a long, complicated naming process. As Sawnee says, it used to be called dolphin. We used to catch them when I lived in Florida and worked for a guy who had a good-sized fishing boat. Terrific eating cooked fresh: firm, tender white meat. And a good fish to battle into the boat.
While I was in Florida - 1977-78 - the name changed to Dorado, to differentiate them from flipper and other bottle-nosed mammals. So, we called them dorado during my days in Florida. Later, on a return visit, I first heard them called Mahi Mahi, which is Hawaiian for "strong" denoting how well they fought when you hooked one.
By the way, that is a fetching young woman. But she seems to be holding about 70 pounds of fish straight out without flexing her muscles. I would handle any courtship with her very delicately.
