The Great White Shark
Beginning with the simplest one-celled organism, an extraordinary animal rose in the murky waters entitled to a non-comparable killing-eating machine. This organism has become nature’s most genuine and most successful creature that it has remained unchanged for over 250 million years. Nature finally invented the perfect king of the sea. This animal has given the sea it’s “living” adjective; in turn, it was entitled—the “great white shark.”
The Great White Shark derived from a series of evolutionary advancements that took several billion years. It began with the derivation of the vertebrates—the Phylum
Chordata. Here, the Class Agnotha came to existence. Some features of Agnotha are the
presence of a cartilage skeleton, nine gill slits (turning into five gill slits in sharks, where the first four became the jaw), and fins. Sharks belong to the class Chondrichthyes—a more elaborated organism. Jaws derived from the first four gill slits, spiral valve, and productive fins. The fins are amongst the most important advancements made by the sharks.
Fixed rigid rods support the fins. The sharks have five different types of fins.
They have paired fins that lift the shark, as it is able to swim; paired pelvic fins, which stabilize the shark and letting it steer to reach its prey in a more effective manner; dorsal fins also further aide the shark in stabilization as well as the anal fin. For propelling, the shark uses the caudal fins. The caudal fins allow the shark to charge directly toward its prey.
The great white shark’s size is inevitably recognizable, but it was actually even
bigger, much bigger. It was called Carcharodon megalodon years ago. This creature is
still believed by some to live down in the waters, where it would be almost impossible to reach shore because of its monstrous size. It is over forty feet long and believed to be able to eat a school bus whole! Of course, the great white average length is anywhere from twelve to sixteen feet long, but they are not restricted to those limitations.
The shark’s outer “skin” is covered by something called placoid scales. These
scales are like tiny teeth and have the same structure as the shark’s teeth. They are also called dermal denticles. The placoid scales are arranged in a regular patter.
Although they do not g...
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...lifornia, they are found all over the world as long as there is an abundance of its prey.
It is not hard to think of the Great White Shark as one of the most feared animals
in the water. The release of Jaws in the 1980s gave Americans a bigger fear of this
creature. Since then, sharks overall have become overfished. Each year over 700,000
metric tons of sharks are harvested each year, the great white being one of the most
killed. Sharks play a vital role in the ecosystem. They keep the ecosystem populations
low by killing other animals to balance off nature’s reproduction. If it were not for
sharks, marine population would increase considerably. Others would eliminate available
food because only the stronger ones would survive—survival of the fittest. Sharks may
not continue to follow its planned role in nature, if humans continue killing them.
It seems that Ernest Hemmingway was right in his book The Old Man and the Sea; if we could reach the stars we would kill them too. It is a blessing miracle that they
are so far away we cannot reach it. But maybe one day….we will reach them, and kill
them in all their glory like all other animals on Earth.
Every year, there are about 100 million Sharks killed, ultimately for its commercial success. Their fins are used as the main ingredient for a dish so-called Shark soup. However, many are unaware of the actual importance of Sharks' existence on Earth. They do a number of things to control and balance aquatic life down below, which in return affects how we live on the surface. Sharks have existed in our world for over 400 million years, if they were to suddenly disappear for industrial purposes, much problems will be encountered throughout the world. We must preserve the lives of Sharks, for many reasons most importantly that shark hunting is morally wrong, it may provide economic failure in a given time, and it may serve a critical unbalance of a healthy environmental state.
Throughout the film there are many experts about the ocean and the animals that live in it. Researcher Ritter the misconception of the shark’s species is blown out of proportion by the media, which is why sharks have such an awful reputation. Experts touch up on this subject adding how even one of the biggest movies Jaws is a very large portion from where people get their fears from or it could be from all of the “shark attacks” on the news. Rob discusses how at the rate we are going we can destroy all of the food chains in the marine ecosystem, and this is where most of our oxygen comes from. Throughout the film experts Rob Stewart and Paul Watson are trying to get long lining banned in Costa Rica. Paul makes a really interesting point saying how the biggest problem is that we do not understand what we are and we are just a bunch of “conceited naked apes” that are out of
A fisherman sits in his boat on the open sea, alone save for the fish below the water’s surface. The calmness of the ocean is disrupted by something underneath, something big. Fear seeps through the fisherman’s heart as he sees the shiny gray dorsal fin pierce the sun-glinted surface of the ocean. The creature stops its ritual and pulls its head out of the water, revealing the face of a great white: scars from countless battles in the ocean’s depths, a mouth full of lethal daggers, and dark, savage eyes.
Back in the dynasty the Emperors would serve the dish to honor the guest, because they believed it had healing benefits from the concurring of a shark (Fairclough, Caty). Fin soup still occurs today even when not on special (Fairclough, Caty). In addition the shark fins for can sell for a pretty penny anywhere from $500 a pound or even $1,000 a kilogram (Fairclough, Caty). As a matter of fact, fishermen in Melbour, Segal would export $1300 pounds worth of shark fins a week. It was recorded that a single adult fin sells for $80 and a two-meter monster can sell for $300. Additionally, 1 out of every 100 sharks reported killed between 2000-2008 comes from these fisherman(Hinshaw, Drew). (commentary) about Its question that fisherman practice “unsustainable finning” because it does pay nice , but the amount of money gained by finning isn’t comparable to how much sharks are worth to our economy. The global value of shark finning is around $630 million but is declining, while shark tourism is worth $312 million and promises to be worth $780 million in 20 years ( source 8). Human activity of finning isn’t the only reason to the decline of Great White sharks, human protection is another
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Ling, Lisa . "Shark fin soup alters an ecosystem." CNN. Cable News Network, 15 Dec. 2008
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