Sharks
Sharks
Most people are afraid of sharks. But most sharks do not hurt people. There are more than 300 kinds of sharks. Only seven kinds are dangerous to people.
Sharks range in size from very small to very large. The smallest shark is the Pygmy shark. It is only about eight inches long.
quick facts
There are more than 300 kinds of sharks.
Some sharks can reach speeds up to 60 miles per hour.
Unlike most fish, sharks have skeletons made of cartilage not bone.
Even more about Sharks