There are over 30000 known species of fish…- It is estimated that there may still be over 15,000 fish species that have not yet been identified.
- There are more species of fish than all the species of amphibians, reptiles, birds and mammals combined.
- Fish have been on the earth for more than 450 million years…
- Over 1000 fish species are threatened by extinction…..
- The study of history of fishes is known as ichthyology
- Fish have a specialized sense organ called the lateral line which works much like radar and helps them navigate in dark or murky water.
- Relative to their body size, fish have small brains compared to most other animals.
- The eyes of a fish never close even when they’re asleep..
- Fish drown when they are taken out of water, due to an overdose of oxygen.
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