The life span of great white sharks is generally about 70 years, and some great white sharks with longer life span can live about 100 years. However, great white sharks that can live to about 100 years are not common. First of all, with the rapid development of industry, the pollution of the sea area is becoming increasingly serious, and the waters where they live will be affected, so their life span will be shortened.

Secondly, the area of the sea is reduced now, and the activity space of great white sharks will also be reduced. According to biologists, great white sharks have a very strong immune system, and they basically don't get sick at ordinary times. In addition, the ability of great white sharks to heal wounds is very strong, and they recover quickly after injuries. This kind of characteristic will also make them live longer than other fish.

There are not few natural enemies of great white sharks. Although they are fierce in character, there are some fish in the ocean that are more fierce and intelligent than them. For example, killer whales are very powerful in attack, and they all feed on sharks. They are not only natural enemies of great white sharks, but also natural enemies of all sharks. Besides killer whales, dolphins are also natural enemies of great white sharks, because dolphins are flexible, and their sound waves also have certain influence on sharks' judgment. In addition, dolphins are social animals, and they will attack great white sharks in groups, so sharks are no match for dolphins.