Dolphins are mainly meat-eating animals, taking small fish, shrimps, crabs and so on as their own food. They are very cute when they are eating, and we can often see dolphins eating in aquariums or zoos. At this time, they may jump very high, then catch the food and swallow it directly without chewing, which is the habit of dolphins to eat. When dolphins live in the ocean, they also swallow directly and do not chew. From this point of view, it seems that teeth do not play a very important role in their feeding. However, the role of teeth in their predation is relatively large.
As mentioned above, dolphins eat by swallowing directly, and do not need to chew in the process of eating. This is because direct swallowing is the habit of dolphins, in the long course of survival, they are using this way of feeding. In the process of swallowing food, dolphins can also swallow part of the sea water into their stomach, which is of great significance to dolphins living in the ocean. The osmotic pressure in the sea water is very high, and the water in the dolphin body will continue to lose, at this time, the sea water needs to be sucked into the body to replenish. Of course, salt is also ingested during this process, but don't worry, dolphins have special chloride cells to flush excess salt out of their bodies.
Dolphins can eat without chewing, and another important reason is that they are rectal, swallowed food can be directly through the intestinal tract. Of course, too big food is not enough, so what dolphins eat is some smaller fish and shrimp.