Sea Creature

Scientists draw attention to the wonderful world that swims in a drop of water, of invite us to ponder the living creatures in it, coming and going ; how amazing their bodies are! Watch them us they seek their provision, attack their prey, flee from their enemies. All you can do is acknowledge that just as man has feelings, similar  feelings also reside in the hearts of creature too small to be seen.
  The  ocean is full of life. The number of species that exist in the seas is far greater than the number of species that exist on land.


The creaturethat live in the sea are of several different kinds, and new spacies are still being, discovered, such as plankton those tiny creaturees, in number of wich in a single cubic mile is a seventeen digit number, in other word billions upon billions of these creatures exist within that area.

The sea is an enormmous ecosystem comprising small fish upon which large fish feed. It is inhabitedby thousand of remarkable creature showing an amazing diversity in physical characteristics and behavior. For example, the killer whale travels in all directions, wandering the sea like a lion in jungle. It has sharp teeth and unimaginable strength; it can attack ships and wreck them. Other remarkable sea creature include the jellyfish and other tiny invertebrates. The sea also has birds of it own, noisy birds with big bodies and loud voices, with wingspans of up to fifteen feet. These birds can continue flying for hours on end, and it is said thad they sleep on the wing, soaring in the sky!

  It is sufficient to think of the millions of fishermen who spread their nets in the the sea and catch millions of tons of fish every hour, and it is as if the sea is not depleted by their fishing!
  The depths at which various sea creature live vary; each level has its own kinds of creature living in it. We will speak of a few examples out of the millions that live in the sea and tstify to the greatnss and might of their Creator.

Amoeba

 The amoeba is a tiny creature that lives in swamps and ponds or on rocks at the bottom of the sea. It cannot be seen by the naked eye; it is visible only with the aid of a microsocope. It is an invertebrate that changes shape according to circumstances and need. When it moves, it stretches out part of its body to form something like a foot, by means of which it moves to wherever it wants to go. This extension is called a pseudopodium ("falce foot")



  When the amoeba finds foos, it sizes it with one or two pseudopodia, exretes some digestive substances, and absorbs nutrients from it. The waste is then epelled from body.

   It breathes with its entire body, taking oxygen from the water. Imagine this creaure which cannot be seen with the naked eye, living and moving and moving, eating and breathung, expellingits waster! And each part foms a new creture.

Sponge

  The sponge was regarded as a plant until 1765 C.E., when scientists noticed white examining a living sponge, that water entered its side pores and exited through an upper opening in a continuous fashion, whereupon it was suspected that the creature being examined was a living animal.
   In 1852 C.E., the scientist, Robert Grant, included the sponge in its current classification as an animal species.
   There are some sponges which are very small and can only been seen with difficulty, and others which are vey big. Their clors also vary; they may be yellow, green, orange, red or blue.
    The sponge has numerous small arifices on its body, and at the top there is a wide opening. Water enter, bringing with it living beings and nutrients through the side opening, and the leftovers areexplled from the upper opening, Hence, it differs from all other living, creatures in thet its main, upper orifice is used not to to take in nutrients but to expel waste.

Fish


Fish are aquatic creature whos bodies have develoved to suit the watery enviroment in which they live. The fish's body is streamlined like a boat which enable it to keep ita balance whilst swimming and to move forward. Its tail is flat and bow-sharped in the middle, and enables it to change direction in the water.

One of the wonders of the creation of Allah, the Exalted, is the precese of a rectangular sac in the dorsal portion of the fish that fills with air and increases and decreases in size depending on where the fish wants to go.This sec is called the gas bladder or swim bladder.
The fish also has external openings, the mouth, nose and gills and genital and excretory openings. One of the amazing funtions of the fish's body is the gills with which it breathes . The Hti fish opens ita mouth, letting in water, then closes it, and the water passes through side openings in the mouth to the gills. Thus it obtains oxygen from the water and expels carbon dioxide.