An interesting fact about the bony fishes, is that they are the largest group of game fishes. A game fish being a fish that is heavily hunted for sport.
To the right, is a picture of a hammerhead shark. unlike the bony fishes sharks evolved in salt water. Sharks also have cartilaginous bodies, and do not have a swim bladder*
* a swim bladder is an organ that allows the fish to adjust its depth in the water by adjusting the amount of air in its swim bladder.
Today the majority of the bony fishes go into a category called the ray finned bony fishes the most advanced of which bein the Teleosts.
highly mobile fins