The Great White Shark Essay

Name: Size comparison of Carcharodon carcharias (Great White Shark, 5.2m), Rhincodon typus (Whale Shark, 9.7m) and conservative/maximum estimates of the largest known adult size of Carcharodon megalodon (15-20m), with a human Homo sapiens (1.8m). Source: Own work.

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.

Sharks do not have skeletons, but just cartilage. Also their jaws can move independently without any of their other body parts. It allows them to have a stronger hold on their prey. Sharks have oil in their liver that allow them to eat less often. So when they eat us up, they must be really hungry. Their fins help them feel vibrations of other creatures so that they can get into position to pounce on their prey.

Sharks have been in our oceans for almost 450 million years. Those millions of years of evolution have allowed many different shark species to develop abilities, and to become perfect predators.

Every Jaws fan knows the shark gets it in the end. What they do not know is that too many sharks have gotten it; and that has caused a rapid decline in the shark population over the past thirty years. Since the 1970's, sharks of the Atlantic and Gulf of Mexico shores have declined eighty-five percent. Sharks are vital animal to our world's ecosystem, and if the decline is not controlled; we could be facing devastating problems in years to come. Information has been obtained from two books: The Shark Almanac by Thomas B. Allen and Sharks, An Introduction for the Amateur Naturalist by Sanford A. Moss. Sources also include a number of online references, among them BBC News, ENS News, The New York Times, and two online scientific

Most sharks eat their prey whole, or tear off large chunks of flesh at a time.

The dorsal fin is triangular, and has been know to grow in excess of 6 feet in length on males, but grow no more than 3 feet on females. (Martin) The pectoral fins of the orca can measure up to one sixth of it’s body length and is in the shape of a paddle. The orca usually have 40-50 conical teeth which measure over 2 inches in length, and has a perfect fit with the opposite set which makes it an excellent hunter. Although the teeth are robust, they do a lot of work through the years because older orcas have been known to have teeth worn down to the gum tissue (Haley.) The tongue of a killer whale has been known to weigh in excess of 2 tons (Martin.) They have been known to be fearless hunter, and a fast predator. Some say the ferocity of the killer whale exceeds that of the great white shark, which makes it one of the most feared in ocean life.

The Great White Shark is the top predator of the ocean, meaning that it is not hunted by other animals in the waters. The Great White has been listed as an endangered species due to the over hunting of them for shark teeth and there fins.

Many people call sharks beasts, terrible things, killers, but they are not. For instance sharks need to eat to just like humans. Sharks can eat all day. When sharks eat too much they throw it up and eat more. Sharks fend for themselves when they are hungry they might find other sharks and eat them. Sharks eat squid, shrimp, sardines, tuna. Besides sharks can never stop moving so they don't’ stay in one spot. Lastly sharks might look mean but they are

Sharks have been in existence for more than 300 million years. Their evolution occurred over 150 million years earlier than that of the dinosaurs. Most of the existing fossil data of early sharks was collected from fossilized teeth together with several skin impressions. primitive sharks (Cladodonts) , had teeth which were double-pointed, up to 2metres in length, ate fish as well as crustaceans, and existed approximately 360 million years ago.

The Eastern Grey Nurse Shark inhabits Australia as a genetically distinct population from its Western counterpart, and has been labeled a “Critically Endangered” animal by the Environment Protection and Biodiversity Conservation Act of 1999 ("Australian Threatened Species”). The population is found along the coast of Queensland and Narooma, the southern area of New South Wales, and various efforts have been put in place to conserve the species (“Grey Nurse Shark,” 2016). As such, the conservation methods put in place are not sufficient and further steps are necessary to allow the species to recover from its human-induced endangerment.

The Amazing Sharks Imagine you are on a surfboard and see see something small and grey coming at you. What would you do? Sharks mistake humans for other prey such as turtles or seals. Humans have mistakenly thought sharks, especially the Great Whites, are vicious man-eaters, but they are actually decent creatures. Sharks are curious creatures that some people need to learn more about them.

Sharks have a long history, they can be dated back to over 400 million years ago, one of very few species that live for such a long period without distinction. Within over 400 different species, the smallest shark is only 17 cm in length which is the dwarf shark; while the largest

Most people are terrified of sharks and want nothing to do with them others love them I’m one of the ones that love them I think they are just misunderstood intelligent creatures and this will help you realize that too. Sharks have been on earth for at least 420 million years ago that’s 200 million years before the first dinosaur! Sharks outlive humans they have been on earth longer and have longer life spans the oldest living shark is 500 years old while the average human can live as long as 70 years in perfect health. Sharks like people come in all shapes and sizes and swim everywhere from the arctic circle to the Caribbean. Some sharks are big some little some long and thin some wide and short they come in every size imaginable and in the weirdest conditions like seas and oceans with other animals ready to eat any injured sharks to lakes hunting fish they live almost everywhere.

A shark has multiple rows of teeth. The mouth of sharks is in the front of the head. In some species, sharks teeth are replaced as much as once a week. Some sharks have teeth used to crush and grind. These are some what like what humans have. They also have sharp teeth. These can be compared to incisors that humans have. These types of teeth are very important to sharks because they are carnivores and depend on their teeth in order to eat their prey. A sharks body in covered by scales which cover their bodies. These scales make the skin of a shark very rough and strong.