Where on a fish can you find its dorsal fin?

good question!!

Kiwozzie, Adipose is the name of one extra fin on the backs of Fishes etc.

My 3 Fishies have those. they are so sweet Swimming around all day long in there own ind Tanks. my Female fish wants a friend but my 2 males Could Careless Lol...

Hatcheries clip the dorsal fin to differentiate them from wild fish.

Sharks, dolphins and orcas come to mind when I think dorsal fins.