This gallery: Fishes, Sharks, Rays, and Skates, known as Elasmobranchii, consists of fishes without a bony skeleton. They are Chondrichthyes: or cartilaginous fishes. Chimaera, or Holocephali, would also fall into this group.

I generally do not seek out sharks, but they are commonly seen when SCUBA diving, and I have even touched some types of shark, whose skin feels much like sandpaper. Sharks are so popular with divers that many dive operators conduct shark dives when they...
more »