SOME FACTS ABOUT FISH:-

1.There are more than 20000 species of fish including groups of Jawless fish, bony fish and sharks with varying size, shape and colours.

2.Lifespan of average fish is 20 years. Wels catfish has longest life span of 60 years and weight is around 170 kg.

3.Fish prefer to be in groups known as shoal. A shoal can contain millions of fish.

4.The process in which group of fish are SWIMMING in the same direction is known as schooling.

5.Fishes form large number of groups and reproduce by releasing large quantities of eggs and sperm (FEMALES and males) in to the water and would ensure the fertilization of eggs.

6.There are few species LIKE sharks which develop their eggs internally and release the eggs only after the fertilization which would further gets hatched to the larvae.

7.Fish can LAY thousands of eggs at a time however very few would reach to maturity.

8.Fishes use different variety of noises for communication. They make very low pitch sounds and also use body parts like muscle vibration and bladder.

9.Fishes are mostly carnivorous, eating insects and other small fishes, only few of the species are herbivorous and their diet includes weeds and sea plants.

10.Fishes play a very important role in various cultures. They have the symbolic meaning in different religions and are worshiped as deities.

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