LolMeLol1
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| Joined: 12 Jun 2010 |
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Sonia789
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| Joined: 15 Sep 2008 |
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Jmanfh
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| Joined: 27 Jun 2009 |
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RobloFly
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| Joined: 05 Jun 2011 |
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| 07 Apr 2013 11:24 AM |
Sharks are a group of fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii), and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus. Under this broader definition, the earliest known sharks date from more than 420 million years ago.[1] Since that time, sharks have diversified into over 470 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (39 ft). Sharks are found in all seas and are common down to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive in both seawater and freshwater.[2] They breathe through five to seven gill slits. Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They also have several sets of replaceable teeth.[3] Well-known species such as the great white shark, tiger shark, blue shark, mako shark, and the hammerhead shark are apex predators—organisms at the top of their underwater food chain. Their predatory skill fascinates and frightens humans, even though their survival is threatened by human-related activities. .
if you vote for me, all of your wildest dreams will come true - pedro. |
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15rawsone
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| Joined: 03 Aug 2008 |
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LolMeLol1
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| Joined: 12 Jun 2010 |
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| 07 Apr 2013 11:25 AM |
| i'll get you a birthday present today. |
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| 07 Apr 2013 11:25 AM |
happy early bday
~ i'm inside your pillow ~ |
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LolMeLol1
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| Joined: 12 Jun 2010 |
| Total Posts: 43676 |
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| 07 Apr 2013 11:26 AM |
| My birthday is in a week or two ._. |
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| 07 Apr 2013 11:26 AM |
| omg do u have ur bday suit ready |
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LolMeLol1
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| Joined: 12 Jun 2010 |
| Total Posts: 43676 |
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LolMeLol1
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| Joined: 12 Jun 2010 |
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mrk23
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| Joined: 03 Nov 2011 |
| Total Posts: 23543 |
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| 07 Apr 2013 11:28 AM |
If you make a shirt , ill buy it.
Happy early birthday. |
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LolMeLol1
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| Joined: 12 Jun 2010 |
| Total Posts: 43676 |
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| 07 Apr 2013 11:29 AM |
No one cares about my Birthday on April 16th ._.
*Dead Island Trailer music starts playing* |
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mrk23
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| Joined: 03 Nov 2011 |
| Total Posts: 23543 |
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| 07 Apr 2013 11:32 AM |
My birthday was on 5th april.
-- (╯°□°)╯︵ ┻━┻) |
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LolMeLol1
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| Joined: 12 Jun 2010 |
| Total Posts: 43676 |
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