Kamis, 22 November 2012

Type of Sharks

ANGEL SHARK:
  • flat body like a stingray -- you can tell the shark is not a ray because the pectoral fins are not attached to the head.
  • They bury themselves in the sand or mud with only the eyes and part of the top of the body exposed.
  • They are bottom feeders, eating crustaceans like clams and mollusks and fish that are swimming close to the ocean floor
     BASKING SHARK:
    • second largest shark (about 30 feet long and 8,000 pounds)
    • filters plankton from the water using "gill rakers"


      BLACKTIP REEF SHARK:
    • does well in captivity so is often found in aquariums (which is why we have so many photos of it)
    • about 6 feet long.
    • grey with a black tip on its fins and white streak on its side



      BLUE SHARK:
      • about 12 feet long.
      • sleek, tapered body
      • among the fastest swimming sharks and can even leap out of the water
      • diet consists mostly of squid, but it will eat almost anything
      • considered dangerous - have attacked people


        BULL SHARK:
        • third most dangerous to people
        • can swim in salt and fresh water and have even been found in the Mississipi river.

      GREAT WHITE SHARK:
    • more attacks on people than any other type.
    • averages 12 feet long and 3,000 pounds.
    • unlike most sharks, it can lift its head out of the water.

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