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Sharks Sharks Presentation Transcript

  • Megan Heffron Computer Literacy Educ 462 November 29, 2004 Science: Grade 3 MMH213 [email_address] Dr. Coffman TERROR OF SHARKS
    • Sharks Have a Bad Reputation
    • Shark Attacks
    • Most Dangerous to Humans
    • Mistaken Identity
    • Predators- HUMANS
    • Myths About Shark
  • Sharks Have a Bad Reputation Movies and media play a huge role in this stereotype
    • The 1975 film “Jaws” about a killer shark, scared audiences out of the water, and fueled a worldwide hatred and fear of sharks.
  • Media Role
    • “ Summer of the Shark”
    • Last year shark attacks were all over our TV screens
    • Less attacks that year than the previous but on TV more
    • Little Boy gets arm ripped off by shark and heroic uncle goes in after the shark
    • This is one reason the media plays up on attacks
  • Bethany Hamilton a 13 year old girl attacked while surfing
    • Media covered this story and it was seen all over the world- “Vicious shark rips girls arm off!”
  • When is the most likely time to encounter a shark- FEEDING TIME
    • Dawn till 10am
    • and
    • 2-4 pm
  • Shark Attacks
    • Many People think this is the result when a shark is nearby
    • This is very wrong, in actuality the chances of being bitten by a shark are slim to none. In the United States, the chances of drowning are 1000 times greater than being attacked by a shark.
  • World Shark Attacks 48 6 54 1999 48 12 60 1998 40 3 43 1997 63 11 74 1996 53 9 62 1995 41 14 55 1994 41 14 55 1993 48 7 55 1992 35 3 38 1991 35 2 37 1990 NON-FATAL FATAL TOTAL ATTACKS YEAR
    • Sharks are in the water with humans all the time and yet you have a better chance of being struck by lightning than bitten by a shark!!!!
    • There are over 344 species of sharks and only 27 have been accused of attacking humans
    • Those three sharks include:
  • Great White (Carcharodon Carcharias)
  • Bull Shark (Carcharhinus Leucas)
  • Tiger Shark (Galeocerdo Cuviev)
  • Mistaken Identity
    • One of the main reasons that scientists believe that sharks attack surfers is because a person on a surfboard resembles the sharks normal prey, a seal.
    • Another reason that may be a cause of shark attacks on man is a confusion state for the shark.
    • Shark feeding is becoming more and more popular as a tourist attraction and sharks are relating humans to food.
  • Humans are sharks #1 Predator
    • Humans hunt and kill sharks for several reasons
    • To eat
    • Cosmetics
    • Pills
    • Prizes
    • Test their masculinity
    • Net Protection
      • People eat all different kinds of sharks
    • One of the most common types of food is shark fin soup
    Food Source
  • Cosmetics
    • The gallbladder and part of the shark’s liver have been shown to improve acne and other skin complaints.
  • Pills
    • Health pills made from shark’s liver claim to reduce the incident of heart disease and cancer, and to increase longevity.
    • For many years, shark livers were used as a source of vitamin A and E until a synthetic alternative was discovered in the 1950’s
  • Prizes
    • Jewelry
    • - Shark Teeth
    • Souvenirs
    • - Jaws from a shark
  • Testing their strength
    • Man has been hunting sharks for years to prove that they are the more dominant species. It is a way for men to test their masculinity and in turn, thousands upon thousands of sharks die each year.
  • Netting
    • In order to protect bathers, fishing nets are laid across the ocean so that sharks can not swim to close to shore
    • The only problem is that sharks get caught in the nets and die
    • Many people don’t care because it is only a shark that is dead-
    • But What If…
    • It was a dolphin, would you feel differently????
  • Myths About Sharks
    • Sharks have peanut size brains and are incapable of learning
    • False, Shark’s relatively large and complex brains are comparable in size to those of supposedly more advanced animals like mammals and birds .
    • Sharks are useless fish
    • No way, sharks are a critical part of marine ecosystems, a source for knowledge to help medical conditions, and the basis of a valuable fishery.
  • Some More Myths
    • Sharks prefer human blood
    • False, most sharks do not appear to be especially interested in the blood of mammals as opposed to fish blood
    • A shark will attack every time in contact with a person
    • False, people are in the water with sharks all the time and do not get attacked
    • Sharks are one of the most amazing animals
    • Don’t fear them, rather admire them for their beauty and grace
  • Bibliography
    • Bethany Hamilton. www.theage/com/au/.../htm
    • Bull Shark .
    • Cosmetic Container.
    • Dolphin in Net .…/newsid_2848000/2848623.stm
    • Ellis, Richard. Great White Shark . Stanford University Press. California, 1991.
    • Freedman, Russell . Sharks . Holiday House, New York, 1985
    • Great White in Net.
    • Great White Title .
    • Jaws Movie .
    • Jaws Souvenir .
    • Jaws Theme Sound Clip. http://www.jawsmoviesounds.html
    • Man Feeding Shark .
    • Mistaken Identity .
    • Need a Bigger Boat Sound Clip. http://www.jawsmoviesounds.htm
    • Pope, Joyce. 1001 Facts About Sharks.Dk Publishing, INC. New York, 2002
    • Shark Attacks .
    • Shark Attacking Helicopter.
    • Shark Caught by Fishermen.
    • Shark in Water with Surfer.
    • Shark Jumping out of Water . great%20white%20shark.htm
    • Shark Gallery.
    • Shark Media.
    • Shark Teeth .
    • Taylor, Ron and Valerie. Sharks Silent Hunters of the Deep . Readers Digest. New York, 1995
    • Tiger Shark.
    • .