Soup fin is shark fin used in making shark fin soup.

you go to poptropica shark tooth island then you go to the person with the shark fin and then click on him....and then you will have the shark fin.

A dolphin's fin is rounded at the top, but a shark's fin is straight

Shark Fin Blues was created in 2005.

Well, if you eat a shark fin, you have to cut off the shark fin first and a shark without fins is pretty much doomed and will drown because it can't get oxygen. And shark fins are expensive.