Each species of fish has unique uses for their fins, but simply put fish use their fins to propel and to steer themselves.
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.
The pectoral fin mantains how deep the fish can go.
Most species of fish don't have an adipose fin.
pushs the fish to move
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.
The caudal fin of most fish provides thrust to move the fish forward. An exception would be the seahorses which do not have the fin. Their tails are prehensile.
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?
it helps it cut through the water
they turn it to change directions when swimming
The main function of the dorsal fin in any animal with a dorsal fin is stability. Some fish have adapted for using the dorsal fin for other uses, such as propulsion in the Sunfish. The anglerfish's dorsal fin has evolved to work as a fishing pole so that the fish can bait and catch their prey.
2 fins
It's so important because it can help the fish have BALANCE to swim in the water i think they use the Pelvic fin so the can swim aswell from predetors... --ShAnNa RiMpOlA--