Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Essay on the evolution of shark
Essay on the evolution of shark
Essay on the evolution of shark
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Essay on the evolution of shark
Sharks now are a lot more dominant than they were before, seeing something put up a fight with a great white is very rare. Most sharks are carnivores and do not seem to have very much competition for food because of their size and ability to hunt. Not all sharks now are at the top of the food chain but for the most part there are not many other creatures that will put up a good fight with a shark. Just like an creature on earth as time goes on something’s are no longer needed and eventually with enough time that creature evolves and either changes something to better adapt to their surroundings or gets rid of something they do not need anymore. Just like the way humans do now no longer need appendixes because evolution is getting rid of something …show more content…
Sharks are made up of mostly cartridge and this is something that over time it is hard to find fossils that have survived over the years because the cartridge deteriorates and is no useable. With many fossils found before sharks they are made of bone so it is a lot easier for people to discover what the creature was because of the intact fossil. Cartilage is good for the shark because it is lighter than bone so the shark is more mobile than say a fish that has real bones. Humans also have cartilage in places like the nose and the ear and this is why when looking at a human skeleton there is nothing in the place of where the nose was and why there is a hole where the ear is normally …show more content…
Sharks have changed a ton from when they roamed the earth millions of years ago, from body shape, to the size of sharks. Sharks that used to exist have helped evolve modern sharks into something we can study on a daily basis. From the data I have presented in this research paper I feel I have learned a lot on what sharks used to be. I have gained knowledge on how sharks adapted to their every changing environments. Reading all these articles have shown me why sharks are they way they are to this day and that to me was the best part about this project, knowing that I will be able to use this information for the rest of my life. The topic of shark evolution may seem to be focused only on sharks but it is much more because what I learned from sharks I can use when I am looking at other species because they all have similarities of where they came from. Before this paper I had no idea when sharks were discovered and I really didn’t know much about the ancient species. Learning this has been very cool and has taught me lot more than just
As Stephen Covey once declared, “Just as we develop our physical muscles through overcoming opposition- such as lifting weight- we develop our character muscles by overcoming challenges and adversity.” This may seem like no sweat, but in reality it is laborious to do. Nevertheless, there are many people who embody this quote in our everyday lives and even in literature. The short story The Truth About Sharks by Joan Bauer, depicts such a person. In this anecdote, the experience that the protagonist, Beth faced, taught her to stand up for herself and therefore feel empowered. She went from a sullen teenager who was unable to stand up to her uncle and one who felt insecure in the shadow of her cousin, to someone with the confidence to rise above. The Truth About Sharks portrays a vital change that happened to Beth as a result of her being falsely accused of shoplifting and the challenges she faced to clear her name. This article renders a dynamic change that occurred in the main character, Beth who demonstrated the theme stand up for what you think is right.
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.
One of the previous papers in English class required the class to pick a paper to explore, this question will be concentrated on further in the synthesis essay. What evidence do scientist have to prove that prehistoric sharks existed? The reason behind picking this question wasn’t just to find proof that these monsters swam the seas, but to learn more about them from different resources. One of the resources that were used was a chapter in Angelo Mojetta’s book Sharks, called “ The Birth Of A Legend”. The other resource that was used for information was an article in Discovery Channels website called “ Prehistoric Sharks”. Sharks and Discovery Channel are the two resources that led to many other questions about their different, and similar views on prehistoric sharks existence.
Before seeing this film and looking into it all I was aware of is what was shown on social media, which is what awful creatures sharks are supposed to be. Saveourseas.com had eye-opening statements comparable to the film. There were many persuasive arguments such as “Great white sharks, like all animals, are individuals with individual behaviors and characteristics. As the largest predatory fish, reaching six meters, they don’t have much to fear and are confident and curious animals.” This is a large point in both the documentary and paper. Since most people are constantly worried about how scary the animals are. It is hard for these creatures to get good publicity since our society is so judgmental and believes every detail the media puts out into the world. There are many points that focus on how hunting great whites is becoming more and more illegal, which is necessary for how important they are in the world. These sharks are able to help maintain a healthy balance in the
The bull shark may be responsible for many shark attacks in the world but I believe that we have no right to kill them. Sharks are very important to animals food cycles and if the food cycles get messed up it can greatly effect the world. In fact, the bull shark is more vulnerable to human impact due to their ability to live in fresh and salt water but many sharks that are killed are for either shark fin soup or their liver oil. The sharks liver oil has many uses now but it started as a machine lubricant. Another way that sharks die is by recreational fishing. The sharks can get caught up in the fishermen's nets and eventually suffocate and die. As an environmental community, I feel like we need to inform people about shark habits and how to keep sharks safe. The water is their home and we are
Sharks have also been subjected to medical research, games and competitions, jewellery, souvenirs and cosmetics. We need to take into consideration that sharks play a vital role in the natural world that we live in. it is imperative that we look after these majestic creatures and ensure they remain protected. We need to be aware of the dangers of sharks, swim in protected areas where there are shark nets, and do not swim after dark in the sea (especially not alone) as the sea is the sharks home. Humans should also be wearing wet suits as protection in the ocean. The sea is where they live, they swim freely and they eat – they do not particularly target humans but rather prey on food that is available to them in their habitat.
Image sitting on the beach one July morning. The sun is beaming down and decide to go for a swim. As you approach the water, you see a whale unusually close. You begin to get nervous as it continues to approach the shore. However, you aren’t worried because you know that they are confined to the sea. As the whale comes near you can see it clearly. Just as you think that it will turn around, the whale walks out of the ocean!
In 2015 only 59 shark attacks have occurred around the world compared to the millions of sharks killed by humans every year. Due to these accidental shark attacks people tend to think that sharks, especially Great Whites are evil creatures with malice intentions when attacks do occur; but, on the contrary that is wrong. Sharks are not the only beautiful and unique creatures in the ocean, they also play a vital role in our ecosystem; however, due to human interference they might not be around much longer, through awareness sharks can be protected from endangerment.
The origin of modern day whales, a mystery that has puzzled paleontologists for years, may have just been solved with the discovery of an ankle bone. This discovery might sound simple and unimportant, but the bones of these ancient animals hold many unanswered questions and provide solid proof of origin and behavior. The relationship between whales and other animals has proven to be difficult because whales are warm-blooded, like humans, yet they live in the sea. The fact that they are warm-blooded suggests that they are related to some type of land animal. However, the questions of exactly which animal, and how whales evolved from land to water, have remained unanswered until now.
Thesis: Sharks should be conserved because they are an important part of the ocean, attacks are often incidental, and human behavior influences the behavior of sharks.
... numerous herbal ingredients which are beneficial to human health; still, it is not directly because of on shark fins.
They are creatures that have no clue what we are and are afraid of us. Every year, thousands of more people are killed by other people than by sharks; thousand more people are killed in car accidents than by sharks, and more people are killed by lightning strikes than by sharks. Each year humans kill tens of thousands of sharks, yet, there are fewer than 100 shark attacks upon humans. For example, The Great White shark also known as the man-eater, has the greatest reputation for attacking humans. Recent studies of Great Whites show that they mainly feed on sea-mammals. Seen from below the surface a person swimming with a shark looks much like a seal, with arms and legs sticking out. The shark usually surprises its victim, being a person or seal, by one massive bite, and then retreats in order to allow the victim to die before digesting the food. For this reason, many humans survived the attack of a Great White shark if they are saved before being eaten. Not only getting out of the water and be safe, but the result of loss, blood or
The morphology of whale sharks is mostly similar to aquatic fish species, but many specific traits help differentiate them from the rest. Whale sharks are the largest fish in the world and can reach a size of around 20 meters (Martins, C., and C. Knickle). This is often compared to the size of a school bus. The shark has a very large transverse mouth. They have 5 very large gill slits and have a larger first dorsal fin compared to the second one (Whale Shark). They have a distinctive spotted “checkerboard” pattern with stripes (Martins, C., and C. Knickle). It is not exactly known why they have this specific body marking. It is believed that the body markings act as a camouflage. The strange thing about whale sharks is that they have 300 rows of teeth that play no role in feeding (Martins, C., and C. Knickle).
Sharks live in almost every part of the oceans, from coastal environments to deep-sea habitats. They also live in the warm waters of the tropics to the cold frigid waters of
One particularly interesting sea creature is the whale shark, formally known as Rhincondon typus it was first discovered in 1828 by Andrew Smith (Rowat 2012). This large fish is found globally in warm tropical oceans and prefers to stay within 200 meters of the ocean’s surface in waters ranging from 4.2 to 28.7 degrees Celsius (Stevens 2006). This creature can be found all across the globe in any warm tropical seas. Aggregations of whale sharks have been seen off the coast of Australia at times, although it is primarily a creature of solitude. Whale sharks are filter feeders that consume plankton as well as small fish and are harmless to humans. The whale shark is a species with a fascinating ecology, life history, behavior, anatomy