Sharks have been around for 40 million years and can live up to 280 years old. There are many different types of sharks including the great white shark, which grows up to 6 meters long. Sharks have rows of teeth that they use to bite prey and swallow it whole, and live in deep, warm waters around places like South Africa and North America. They are carnivorous and eat other animals but are often more afraid of humans than we are of them.