A shark can be defined as a marine fish that has rough greyish skin and a skeleton made of cartilage, which usually prey on other animals and are sometimes dangerous to people (Merriam-Webster, 2011). The most tragic shark attack towards humans in history occurred with the sinking of the USS Indianapolis (Nelson, 2002). According to Discovery Channels Ocean of Fear (2012), three specific sharks are responsible for the USS Indianapolis nightmare. Sharks have been known to attack humans, although it is rare and they do not usually initiate attacks.
Donohue, Patrick and Log, Destin. “Sharks 101.” State and Regional Newspaper, 7 September. 2006. LexisNexis Academic. Web. 28 May. 2016.
There were sharks during the Jarrassic Period about 150 million years ago. Megalodon means big tooth. It was the biggest, most powerful shark to ever have lived. It is said that the Megalodon grew up to seventy feet in length. That is as long as three great white sharks! Scientist believe that it might have weighed up to 114 tons. Picture that being 1 adult male African elephants. I believe it could have swallowed a school bus Another ancient shark is called Cladoselache. It lived around 380 million years ago. There have been many of these sharks fossils found in North America.
Sharks are aquatic creatures and very important to the living with lots of information humans may not understand. To start off, femeles give birth to 7-9 sharks per litter that are 3-4 feet at birth. Next humans believe all sharks are monsters but out of 400 species only 4 sharks have been claimed to attack on humans. Lastly sharks attack for 2 main reasons one reason is for defense and predation. They attack in defense when humans are in or around their territory they attack in predation mistaking people for seals. In conclusion sharks are creatures that humans are still learning about and try to understand them better.
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.”
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
They can swim at thirty five miles per hour(Institution, Smithsonian). They also have seven rows of teeth(Institution, Smithsonian). They have a total of three hundred triangular serrated teeth(Bradford). When Great white sharks are in the womb they supposedly swallow their own teeth. The first time they sink their teeth in their prey, it is called a sample bite. Sharks normally go up to their prey and taste them to make sure the want to eat them(Bradford). That's why most attacks are not fatal, because the shark tastes the human and thinks yuck that is not what I want to eat and spits them back out. They don't normally mistake humans for food considering only five to ten happen every year(Bradford). Once they sense food they need to get to it fast. They can swim up to fifteen miles per hour(1). Great Whites have to be fast at Cape Cod because they can not sneak attack the
Sharks, the scariest, biggest, baddest creatures! That's what we make them out to be, but are they really? The answer is no, we say that. We kill more of them than they kill of us, about 900,094 more. Sharks, being carnivores, are NOT natural predators of humans.
Sharp teeth, an ominous fin and the sound of Jaws ring in your ears. For some, this sounds like a nightmare. For the adventuresome spirit, an up close interaction with a shark is a dream come true. With North Shore Shark Adventures, you can live out your dream of swimming with the sharks without any danger. Shark cages and snorkels are used so that you can get as close to the shark as possible in complete safety.
A “Rogue Shark” is a shark that has ‘chosen to attack people, possibly because they have a sensitivity for human complexion’ (Anon., 2011). Their enormous figures, 85% strength mass and unbelievable weight make them brilliant predators, Through the years of 1916-1933 Australian specialist, Victor M. Cooperson acknowledged the concept of the Rogue Shark which nations when a shark has established a taste for human flesh they will stay in an area or perambulation certain coastlines for human kill. so should Rogue Sharks be killed or conserved if they are driven to attack by the taste of human complexion?
Great White Sharks have known to be a great source of fear throughout the numerous ages of sea exploration. With an average size of fifteen feet in length, it’s not hard to imagine why. They are the stuff of many nightmares, but they are largely misunderstood. There isn’t a lot of information on Great White behavior because many believe them to be an endangered species, due to dwindling food sources and overfishing. However, with conservation efforts, their numbers should rise and more studies can be done. The latest major discovery was just in 2014, which shows that with time, we can learn even more about them. In this paper I will study the sharks’ basic facts, their various behaviors, and the effect humans have on them.
Bull sharks are large sharks that prefer shallow waters less than 100 feet deep. They are often found in murky waters. This is a perfect recipe for shark attacks, as bull sharks prefer habitats where humans are swimming, wading or fishing.
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.
Sharks, have been on earth for 400 million years, making them older than dinosaurs, and they have lived on earth massively longer than humans. Shark culling has been witnessed since the late 1960’s by Australian’s because of a fatal shark attack on two males at that time.
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.