Bonnethead shark facts

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Bonnethead shark facts

Curious facts about sharks | Things you did not know about the shark
hammerhead sharkThe skeleton of a shark is not made up of bones but of cartilage.
There are approximately 350 different shark species in the world.
Most sharks live for 25 years; however there are some that reach 100 years.
Sharks are among the best and most feared hunters of the seas.
There are sharks as small as a human hand; and the whale shark, as big as a truck.
Sharks are at the top of the food chain.
Sharks rest more than sleep.
The Megaloden Carcharodon (an extinct shark) had 15 cm teeth and was 18 meters long. The biggest shark that ever existed.
Something that has always impressed the sharks is that they never get cancer.
The whale shark (the largest fish that exists) weighs between 13 and 15 tons on average.
The bull shark is the only one of its family that can live in both fresh and salt waters.
The peregrine shark is the second largest among sharks. It is an animal tolerant to human presence.
In the past, shark skin was used as sandpaper.
Some shark species grow 30,000 teeth throughout their lives.
The teeth of a shark are replaced usually every week.
The vast majority of shark species pose no danger to humans.
90% of people attacked by sharks survive.

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