“In the creation of the heavens and earth, and the alternation of the night and day, and the ships which sail the seas to people's benefit, and the water which Allah sends down from the sky - by which He brings the earth to life when it was dead and scatters about in it creatures of every kind - and the varying direction of the winds, and the clouds subservient between heaven and earth, there
are Signs for people who use their intellect.”
(Surat al-Baqara: 164)
Fish are one of Allah’s mighty creations on this world. Fish are just another common type of organism which exists on this Earth. Fish are everywhere; from the aquarium in an office to the Atlantic Ocean and from the book “Fish Tales” to the notorious movie “Finding Nemo.” The term fish usually refers to a cold blooded (exothermic) aquatic vertebrate which lives and swims inside the water.
Ichthyologists say that there are more than 32,000 species of fishes discovered on Earth so far which is more than all the amphibians, reptiles, birds, and mammals combined. Still, new species are being discovered almost every day. Large areas beneath the ocean surface still remain unexplored. It is predicted that there might be more species of fish which are hidden from the eyes of humans till now. All fish differ in sizes. A fish can be as big as a 51 ft long Whale/Shark or as small as an 8mm Stout infant fish. Common type of fish include; gold-fish, Drum, Spadefish, Trout, Skate, Thalla, Tuna, Hogfish, Wahoo, Grunt, Monkfish, Roughy etc. Some organisms which are considered to be a fish actually do not fall into the category of fish. Examples include; shellfish, cuttlefish, starfish, crayfish and jellyfish.
Have you ever wondered how fish are able to survive inside the water? Do you notice how acrobatic and lissome fish are in water? Let’s see how fish are able to live in the water. A typical fish has a streamlined body covered with scales. These scales which are made of bones similar to human teeth are then covered by a layer of slime which prevents water to get inside the body of a fish and almost, it helps a fish to move through the water. Swim bladders/ air sacs in the abdomen of a fish help it move not only forward and backward, but also upward and downward. Fish carry a pair of fins supported by rays of cartilage or bone. Unlike humans, fish breathe through a pair of gills. There are a very few fish which are warm-blooded. Such fish include Tuna, Swordfish and some species of sharks.
Most fishes have keen sense of vision which helps them to capture food, hide from the predicate, locate shelter or find a mate. Many fishes see color and some are able to see in very low light levels. It might be flabbergasting to hear but fish also have the ability to taste. They have taste buds on their lips, tongue and mouth. Fish have jaws that allow them to eat a wide variety of food, including plants and other organisms. Fish ingest food through the mouth and break it down in their...