Some common shark species include the great white shark and the tiger shark. Other species of shark are whale sharks and hammerhead sharks.
Sharks range from very small in size to huge. In total, there are 440 identified species of sharks that live in the ocean. Each species has different characteristics. For example, the hammerhead shark has a long head that resembles a hammer. This shark is not as aggressive as some other species. The great white shark is the most popular type of shark and it is known as one of the most dangerous. This type of shark can exceed lengths of 16 feet.