There was a whole industry devoted to shark fins. Most were sold to Japan I believe (sharkfin soup etc).
It caused wholesale slaughter of sharks and decimated populations in wide areas.
The belief that only the fin of the shark is good to eat is a common misconception, due in large part to the fact that people generally only hear about Shark Fin soup.
The shark is a fish, much like any other fish and has lots of very edible meat on it. Taste is gonna vary depending on the type of shark of course.
I ate shark once too. It wasn't fishy at all to my recollection.
Alligator is good.
Swordfish is very good.
Ate a donkey steak once in Sardinia. Worst steak I have ever had.
Emu sucks
Bison is very good, and very lean.
Squirrel is kinda stringy though

RTR