Elasmobranchii is a subclass that includes the sharks and the rays and skates. Members of the elasmobranchii have no swim bladders, five to seven pairs of gill clefts opening individually to the exterior, rigid dorsal fins, and small placoid scales.
Wolf Prey Animals and food diet. Wolves predominately prey on hoofed animals including Deer, moose, Bison, Elk, and caribou. Because wolves usually hunt for large animals, (although wolves are opportunistic and will eat smaller prey) they work together to catch their prey. Wolves will eat a healthy, strong animal if they can catch it.
At times, wolves use geographic features such as slopes or ravines to slow down their prey. When attacking large prey, the wolf uses its teeth to inflict wounds on the animal, which results in massive blood loss. Upon completion of a successful hunt, wolves have been known to consume as much as 20 pounds of meat.