Biology Mr. Girod April 28, 2014 The Bull Shark The Carcharhinus leucas commonly called the "bull shark" is a very unique shark. The bull shark can live in both salt water and fresh water but is commonly found along the Mississippi River and around Nicaragua. The bull sharks has a very blunt rounded nose giving it a bullish type of appearance thus giving it the name bull shark. The sharks are a dark black to a light grey with a white underbelly. Bull sharks can grow to be about 350 cm long and
The Kingdom, Phylum, Class, Order, Family, Genus and species for the Bull Shark are as follows: Animalia, Chordata, Chondrichthyes, Carcharhiniformes, Carcharhinidae leucas (Simpfender & Burgess). The taxonomy of every living thing is different, so the classification of the Bull Shark is the one way worldwide to know exactly what animal is being referred to because one animal may have many different common names. Carcharhinus leucas is referred to by many different common names around the world for
“The United States averages just 16 shark attacks each year and slightly less than one shark-attack fatality every two years. Meanwhile, in the Coastal U.S. states alone, lightning kills more than 41 people each year” (Handwerk). Not man people can say that they have been attacked by a shark, or even know someone who has. The story is not the same for Bethany Hamilton. She is a shark attack survivor. When the odds of her surfing again were against her, she proved them wrong. Bethany Meilani Hamilton
film. It is filled with drama that turns the audiences’ world upside down. Grasping humanity, the movie pulls it in and transforms it into something beautiful. It is founded on a true story about Bethany Hamilton, who lost her arm during a vicious shark attack. Sean McNamara, the director, planned to film the movie shortly after the attack in 2003. Seven years from the plot of storyline, it premiered in theaters in April 2011 as a PG movie. Its purpose was to inform viewers that all things are possible
You are smelling the salty water around you and you suddenly feel something pass your leg.It`s a bull shark waiting to devour you.These species and the hammerhead are the two species of shark that you would not want to be noticed by.Both species are extremely dangerous and deadly.Bull and hammerhead sharks have many similarities and differences.The differences between these two species concerning apperance,diet,size and other important factors of the species` lives are important to know in case of
Sharks have several ways to dispatch their prey with surprise attacks, agility, and camouflaged sneak attacks. The shark’s dentition also tells the story of their diet as well as their method of attack. The Great White Shark, (Carcharodon carcharias), is the largest extant predatory shark on Earth and has large serrated teeth that tear through the flesh of its prey. Their teeth are 2.5-3 inches in height and have prominent serrations which allow them to tear large chunks out of prey including
Sharks Sharks are one of the most feared carnivores in the sea. There are 365 species of of sharks in the sea as we know today. All sharks are carnivores. Most of them eat live fish, including other sharks. A shark's most common natural enemy is an another shark. Most sharks eat their prey whole, or they tear off large chunks of the bodies. Some sharks crush their prey. Others take out small pieces off flesh from large fish. Sharks also feed on dead or dying animals. Sharks have the reputation
Shark scales, or dentricles, are roughened and will scrape if felt to wrong way, much like sandpaper. The true purpose for this is unknown, although it is thought the shape increases streamlined properties. Sharks have two pairs of fins and four singular fins, all of which are used for swimming or balance. The rear pelvic fins in males are lengthened to aid in reproduction. The oil in the shark’s liver adds buoyancy, due to the lack of a swim bladder. The gills are protected by gill arches and slits
Saving Sharks From Humans Imagine being a shark, a great white shark. The bloodthirsty monster of the ocean. Roaming around the ocean makes everyone run away, but no wonder everyone is scared of you. With rows of razor-sharp teeth, you can rip people into millions of pieces. But right now, you are in great danger. The danger of getting killed by the top predator, humans. I take the position that sharks should be protected by us because they could be friendly, keeps the ocean balanced, and
all the forms of sharks is how long they have been living on earth. With having over 400 000 million years to diverge from their ancestors, sharks now have such a diverse range of characteristics and abilities in order for them to survive. Sharks are also very geographically distributed around the world. This is due to living in the ocean which occupies 70% of the earths surface, (Ocean Service, 2013), thus giving sharks the ability to migrate globally. Furthermore, some sharks have the ability of
mind when you think of sharks? Sharks make people think of death and fear. As you will be able to see after i discuss types of sharks, their habitat,the food they eat, and their intelligence. They don't seem as bad as you think so. First sharks live a habitat under the water in the sea. Sharks live in many different oceans. They live in the the pacific ocean, Atlantic, Indian,and the Arctic. Mostly all sharks live in salty water, but some sharks live in the river. Sharks live in coral reefs under
savage eyes. This image is what a majority of people believe to be the shark. They believe it to be the bloodthirsty sea monster that appears in countless works of literature and films, but science says otherwise. The classic picture painted by the minds of sailors returning from years at sea come from imagination and sharks’ violent methods of hunting and mating. Sharks fear humans as much as humans fear sharks, and most sharks, particularly the “man-eating” great whites, only bite humans because
The Great Shark debate – to cull or not to cull, has been at the forefront of the minds of conservationists, as well as the general population for many decades now. The opinions of everyone are divided, according to their personal experiences, and views on what is right and wrong for the environment. However, the fact is, and statistics prove that over 100 million sharks are killed every year (according to the Sea Shepherd website), all around the world and for what reason? Shark culling and the
INTRODUCTION Although sharks belong to the class Chondrichtyes, there are many different types. Sharks arose about 350 million years ago and have remained virtually unchanged for the past 70 million years and still comprise a dominant group. It is thought that sharks almost certainly evolved from placoderms, a group of primitive jawed fishes. It took a long series of successful and unsuccessful mutations with fin, jaw positions etc to give us all the different designs of sharks around today. When asked
Sharks are one of the most endangered species in Australia, and it’s our responsibility to help protect these sharks from being over-fished. Many fishing markets fish sharks but deteriorate physical features that help with distinguishing sharks and is very difficult to differentiate between them, since they are produced the same way- as fish and chips. In this experiment DNA samples have been taken from sharks from the NSW Shark Meshing Program. The DNA was extracted and amplified for the production
the WA government continues to support and allow the shark culling off Perth's major beaches. Hi I'm Maya Koentgen, a marine biologist, ecologist and fellow beach user, and I'm here to tell you why shark culling needs to stop. At the moment hundreds of innocent sharks are being caught and killed and why? Because they are simply swimming in their own homes that us humans have invaded. One of the governments main reasons for culling the sharks is because they are coming in too close to the shores
jaws and heard that scary theme music that goes with it. Films like this have given a big reputation to sharks being dangerous and the threatening sea animals. The media also doesn’t help this! Today I will be arguing for the rights of these misjudged sharks and how this new “catch and kill policy” is totally wrong. I am sure that after this you will believe, like me and so many others that sharks are Jaw-some and should not be culled. To start off I would like to update everyone on what the catch
A tale of mistaken identity: the ragged tooth shark (Carcharias taurus, Rafinesque 1810) and the story behind a misunderstood creature T. Ngcongwane, Dept. of Zoology and Entomology, University of the Free State: QwaQwa Campus, Phuthaditjhaba, Kestell Road, 9999 (+27)79 964 7598 2010141469@ufs4life.ac.za Introduction “Shark! There’s a shark in the water!” Possibly one of the scariest phrases you will ever encounter when out on the beach for a tan or walk. That fearsome predator that has got
Dangerous predators have appeared on the face of this planet since the first organism developed. Predation is of utmost importance for the ecological system to maintain its balance. Predators use their unique skills for hunting. If we compile a list of the most deadly predators humans would certainly top the list. They have overpowered and hunted the most vicious and largest animals. Humans have even brought many species on the brink of their extinction. Here is a list of the 10 most dangerous predators
SHARKS There are more that 250 species of sharks, ranging from the harmless whale shark to the ferocious great white. I will describe the feeding habits and localities of the three greatly known to mankind: the great white shark (Carcharodon Carcharias), the tiger shark (Galeocerdo Cuvieri), and the bull shark (Carcharhinus Leucas). The great white shark, known as Carchardon Carcharias, feeds regularly on marine mammals, such as seals, sea lions, otters, dolphins, and whales. Samuel Gruber in Discovering