When your fish has a bloody fin, it means that it is either getting scraped by an unknown source in the tank, or, if there are other fish, that another fish is hurting the injured fish.
I guess you mean "Anal fin". If so, the answer is "yes fish do have an anal fin."
On a dolphin and most fish the fin behind the dorsal fin is the tail fin. Some fish, such as knife fish, have no dorsal fin or tail fin. Dolphins of course are mammals, not fish.
If you mean a fin like a fish fin, there is a word, but mostlly each one is different; Lā (fin). Anal fin, kuaalo. Caudal fin, hiʻu. Dorsal fin, kualā. Pectoral fin, etc. If you mean fin, like 'the end', it is pau'ana.
The tail fin of a fish (the caudal fin) is a fish's means of propulsion through the water.
It's the ventral fin and My best Guess to it's purpose is that it helps stablize the forward movement in the fish, bit like the skegs on kayaks. possibly gives some direction control, like a rudder, and streamlining as well
The fin on the top/back of all fish is called the "Dorsal Fin."
I call it a sketch of a fish's fin. I am sorry if this does not help, but unless there is a fancy name for it I'm pretty sure its a sketch of a fish's fin. Answer: I call it a sketch of a fish's fin too but on my math hw thing it says u call it a scale drawing. how dumb is that?
No, a dorsal fin from a fish is on its back area.
Most fish typically have 7 fins in total. - The dorsal fin. Prevents fish from rolling. - Adipose Fin. Makes the fish hydrodynamic. - Caudal Fin (tail). Propels the fish through the water. - Pectoral fin (x2). helps the fish steer and halt. - Pelvic fin. Helps the fish steer and halt. - Anal fin. Keeps the fish from rolling.
Most species of fish don't have an adipose fin.
There are literally hundreds of species of fish that have a red fin.
what do the dorsal and anal fins do for a fish