king of fishes
Just as lion is called the king of beasts the same way shark can be called the king of fishes. It is the fastest and the most danderous fish in the sea. It is also the largest of all fishes, ranging from one foot to over 50 feet in size. Another reason for calling it the king is that it belongs to one of the oldest groups of creatures alive in the world today. Some fossils of sharks are belived to around 250,000,000, years old. A shark is a saltwater fish that belongers to the calss Chondrichthyes. Its skeleton is made up of cartilage rather than bones. Its skin is covered with many small scales whish are like sandpaper. There are about 400 species of shark in the world. The dog-fish shark grows upto around 3ft. in length. It feeds on small fish and invertebrates. The whale shark the largest of all fish can reach about 50 feet in length. It is the least dangerous. These sharks have many razor-sharp teeth. The great white shark the greediest monster swallows its prey whole. The remains of big animals such as seals dolphins and smaller sharks have been found in its stomach.
A shark will eat almost anything found in the sea from the tiniest sort of sea creatures to other sharks turtles seals or dolphins. They have been known to swim up rivers and attack crocodiles horses and elephants which might have waded into the water. They are also found to attack people swimming in the sea. when in pursuit of their prey they can move very fast. They follow the ships to feed on the waste food thrown overboard from the kitchens of the ships. Shark are caught in arge number every year. Their meat is very nutritious and cheap and can be quite delicious if properly cooked. Their skin is used for binding books and covering boxes and for making bags and shoes. The most beautiful shark is the mako shark. It is snow white underneath and brilliant blue on the top. It is very fast and ferocious and a strong finger when caught alive.