they can lose their fins from injuries and if we cut it off.
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.
dorsel fin
No, it is not. Dolphins use their dorsal fin for balance.
dorsal fin
Dolphins
a dorsal fin
Sharks have gills usually four or five. They also have a tail fin that sticks up and down. A dolphins tail fin goes side to side.
at the end of the dolphins "tail" is called a fluke
it sticks its fin in the wrong places
tail, teeth, fin,high freaquency clicks
To steer and move properly
dolphins have fin to swim with it pushes the water back to help them (dolphins) glid through out the ocean