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Facts About Sharks
Sharks are a type of fish.
There are over 400 species of sharks.
Their skeleton is made-up of cartilage, instead of bones.
That is what makes them so light and flexible.
Sharks breathe with the use of five to seven gill slits. The gills absorb oxygen from the water and release carbon dioxide back into it.
A Shark's skin is covered by small, razor-sharp teeth called denticles. It protects their skin from damage.
Most sharks have between 7 and 14 rows of teeth.
Sharks constantly lose their teeth. Some sharks can lose 30,000 teeth in a lifetime.
Sharks range in size from 22 centimeters in length to 12 meters.
Whale Shark is the largest shark, which grows to a length of approximately 12 meters.
Pygmy Shark is the smallest shark, which is about 8 inches long.
Most sharks are predators, meaning they hunt and eat fish and other sea creatures, but few sharks eat plankton.
Bull Shark is one of the most dangerous sharks in the world.
Most sharks have a very good sense of smell, which they use to find prey.
Sharks have a sharp sense of hearing and can hear prey many miles away.
Most sharks give birth to their babies. Only a few sharks lay eggs.
Most sharks live for about 25 - 30 years.