FiSh

fish live in salted water like sea and in tasteless water like river and lake. Some have flat / thin body, it can fly like bird but in water. the common fish have skeleton that make from hard bone, but shark have have skeleton that make from cartilage bone. The bigger fish is whale that rare. The longest whale not down have a measurement of 12.6 m. Giant whale is weight 15-20 ton, that just eat plankton and small fish, but some in it family include strongest predator in world. Fish have two function there are as decoration for make a room beautiful and we can eat them.
Kind of fish:
a. Sun fish (mola mola) is hard spine fish that heaviest. may be lay eggs produce 300 million ovum, but just some ovum can grow because another fish eat them.
b. manta Ray fish have "a distance of wings" almost 7 m different with another ray fish that can give surprise of electric, manta ray fish not danger.
c. Blue shark that long is 4 m and it heavy is twice more than the bigger land carnivore that is beruang kodiak. Like another shark, pore sensors in its head make this fish can detected signal electric low that result from it prey......