Scary Shark Pictures
Our oceans are filled with more than 465 species of sharks, the largest marine predators. The skeleton of the shark is made up of cartilage that is lighter and stretchy than bones. Like fishes sharks breathe through gills present on the both side of their bodies. The teeth of the sharks are very sharp and they replace their teeth throughout their live.
Mostly sharks feed on marine animals like crustaceans, mollusks, plankton, krill, marine mammals and other sharks. Sharks hunt their prey in the water because they have very sensitive sense of smell, to smell and detect blood in water. The reproductive age of the shark starts from 12-15 years. They mature very slowly as compared to other fishes. It is very difficult to protect the endangered species of the sharks because they only give birth to one or two pups at a time. Pups swim away immediately after birth to defend themselves.