The stomach is one of the important organs of fish, but not all fish have stomachs. If there is no stomach from this aspect of the division of fish, can be divided into stomach fish and no stomach fish. Fish with a stomach can use the stomach to digest, fish without a stomach mainly use the intestine to digest. Sharks are large fish. They belong to the group of fish that have stomachs. Sharks have only one stomach, which plays an important role and is an indispensable organ.
As mentioned above, sharks also have stomachs, and the stomach plays an important role in their life activities. However, unlike the stomachs of humans and many terrestrial animals, and even other fish, the main role of shark stomach is not digestion, but food storage, similar to the role of "cold storage". When sharks are full but have food left over, the extra food is sent to their stomachs for storage. When sharks are hungry but can not catch prey for a while, they will take out the food in their stomachs and use this part of the food to satisfy their hunger.
Shark stomach food can be preserved for a relatively long time, sometimes can be preserved for about 10 days or even half a month or so will not go bad. In this way, sharks can go for a long time without eating new food and will not go bad. At this time, they do not need to eat, but eat the food stored in the stomach.
