Shark fact??

.. Sharks have been around for over 400 million years
.. Sharks live in every ocean of the world from the Arctic to the Antarctic.
.. The average life span of a shark is around 25 years, but some have been known to live to 100



.. The biggest shark is the Whale Shark, it can be up to 50 feet (15 m) in length. It is what is called a filter feeder, it sieves plankton in huge amounts to eat through its gills as it swims along
.. The dwarf lantern shark is the smallest shark at a size of around 15cm
.. The Shortfin Mako shark is probably the fastest fish in the ocean
.. The Whale Sharks has approximately 300 rows of teeth, each with hundreds of tiny teeth
.. The Whale Shark has the biggest mouth of all the sharks
.. The Great White Shark can grow to to 21 feet (6.4m) long. It is the largest meat eating member of the shark family
.. Probably the most dangerous sharks in the world include the Great White, Tiger shark, Bull shark and the oceanic whitetip shark.
.. The Great White Sharks can go for up to three months without eating
.. Sharks have very sensitive hearing. A shark can identify much lower sounds than the human ear can. Sharks can hear sounds up to 700 feet away
.. There are over some 330 species of sharks
.. Sharks have an extremely acute sense of smell. Some sharks are thought to be able to track their prey by smell from over a mile away
.. Sharks do not have bones their skeleton is made up of cartilage
.. Sharks attack fewer than 100 people annually. More people are killed by dogs, pigs and deer each year than by sharks
.. Fishermen kill an estimated 30 million to 100 million sharks every year
.. A Shark has around six and a half tons per square inch of biting force
.. The Dogfish shark is so called because of it's tendency to attack it's prey like a pack of wild dogs
.. Fishermen are estimated to kill around 30 million to 100 million sharks each year
.. Sharks don't chew - they use their teeth to bite and tear food
.. Some people believe a shark will often mistake a surfer in the water for a seal or sea lion, both of which are among it's favourite snacks
(from:www.zoozoo2.com)