Fish Icthyology Essay

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*Study of fish is called Icthyology. *Peter Artidae (1705 – 1774) is the Father of Icthyology. *Fishes are gill bearing soft bodied aquatic cold blooded craniates animals that lack limbs. * They are the first vertebrates with bony skeletons to appear on earth. *Fishes have been on the earth for more than 450 million years.…show more content…
*40% of all fish species inhabit fresh water. *There are over 29,000 identified species of fish on the earth. *No new scales are added as a fish grow, but there is increase in size of scales *In general fish lack ability to swim backwards. Those that can swim backwards are mainly members of one of the eel families. *Majority of fish can see in color and use colours to camouflage themselves or defend themselves and their territory. * Fish…show more content…
* Whale shark is the biggest fish in the world. It can grow to nearly 60 feet. It weighs over 25 tons and eats mainly plankton. It has over 4,000 teeth, though which are only 3 mm long. *Paedocypris progenetica is the smallest fish (even smallest vertebrate) of the world.The size of mature female is7.9mm. It belongs to Indonesia. *Most fish reproduce by laying eggs but some fishes, (such as great white shark), give birth to live babies called pups. * A variety of low-pitched sounds are used by fish to convey messages to each other. *Some desert pupfish can live in hot springs that reach temperatures greater than 113°

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