All species of fishes are included in the Pisces family. Around 30,000 spices of fishes have been identified till date. They inhabit the sea, rivers, lakes and ponds.
The fish is a cold blooded animal and a vertebrate. Fish breathe with the help of gills. They have two pairs of nostrils which enable them to smell. Fish are well equipped for hearing. They have two tiny holes on either side of the head leading to the inner ear. These ears are not very effective for hearing but are used more for maintaining balance. They have another mechanism to help them pick vibrations. Along each side of their body is a line of little porescalled the lateral line. This contains sensory cells which help provide information from the vibrations it picks up.
One characteristic feature of the fish is that they possess fins. The fins are of different types and help in swimming, steering and balancing.
The female fish lays thousands of eggs, (in some cases millions). This is to off-set the high morality rate of the young fish. Which are devoured by predators.
The shark is known as the king of Fish fishes. Other fishes are the ray, sailfish, cod, sardine, dogfish, eel, catfish, salmon, mackerel, anglerfish, sea horse, swordfish and pike.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment