Prickly sharks are built something like 7-gill sharks only they have a paddle like tail and two dorsals. They have been observed by research divers to suspend themselves almost motionlessly just off the bottom of the marine sub-canyon. This hovering behavior is not understood. Prickly sharks are often found in deep dark murky water and may feed on squid and other sharks. Reaching lengths of 12' ft. in length and nearly 1000 lbs can get big but the average observed size was 7'-9' ft.
Prickly sharks appear to be extremely sluggish.