Fishes are most amazing pets which can also be kept as a pet in aquarium , you can keep different fishes in a aquarium Fish use a variety of low-pitched sounds to convey messages to each other. They moan, grunt, croak, boom, hiss, whistle, creek, shriek, and wail. They rattle their bones and gnash their teeth. However, fish do not have vocal chords. They use other parts of their bodies to make noises , there are many sizes and various type of fishes A fish can drown in water. Like humans, fish need oxygen, so if there isn’t enough oxygen in the water, they will suffocate and die so the need proper water to breath Most fish cannot swim backwards. Those that can are mainly members of one of the eel families . Fish have a specialized sense organ called the lateral line which works much like radar and helps them navigate in dark or murky water.
There are over 25,000 species - more than all the species of amphibians, reptiles, birds and mammals combined .Fishes have gills to breath fishes are cold blooded Fish have a specialized sense organ called the lateral line which works much like radar and helps them navigate in dark or murky water . Fish are aquatic vertebrates that have skin that is covered with scales, two sets of paired fins, several unpaired fins, and a set of gills.Most fish reproduce by laying eggs, though some fish, such as great white sharks, give birth to live babies called pups Some fish, such as the great white shark, can raise their body temperature. This helps them hunt for prey in cold water . there are big fishes like shark and many more The fastest fish is the sailfish. It can swim as fast as a car travels on the highway. The slowest is the Dwarf Seahorse, which takes about one hour to travel five feet. It even looks like it is simply standing up, not swimming so there are many facts about fishes , Fish were the first vertebrates with bony skeletons to appear on Earth. Unlike today’s fish, early fish had no scales, fins, or jawbone, but they did have a dorsal fin . Unlike most other fish, the ocean sunfish does not have a tail. A female sunfish can lay 300 million eggs each year. Each egg is smaller than the period at the end of a sentence .