Sharks

=**•Sharks •** =

Shark is my favorite animal on earth, so I am going to write about them. The sharks are a type of fish that have their skeleton made of cartilage and not of bones. Not all the sharks look the same, for example the elephant shark, looks really different than the white shark. So no all the sharks look the same as most people think. Also the sharks are NOT mammals because they lay eggs, some types of sharks keep the egg inside of them and then leave it out, like it was a mammal but it is not.  The shark’s teeth are not attached to the jaw, they have multiple rows of teeth and one shark can loose 30,000 teeth on its life.  [|Even the skin of sharks have teeth!. One of the most defined characteristics of the sharks are small teeth that look like scales covering their skin they are called dermal]  denticles.  The sharks have more than 150 millions of years and most people think that they are “bad” because they killed people but most people doesn’t know that  **for each human that is killed by a shark, the human killed more than one million sharks.**  The shark’s fin is used for food even though it has almost not flavor. Scientist say that the amounts of sharks have dropped more than 95 % since the 70’.  The last thing I want to say is that sharks are amazing creatures of nature and we have to respect and take care of them.  media type="youtube" key="luNdsQ2runo" height="344" width="425" • Almendra • Cáceres •