Dolphins are mammals that live in the water. If we observe them all the time, we will find that they will always swim in the water and seem not to stop, so many people will think that they will not sleep. In fact, dolphins also sleep, but their way of sleeping is different from that of human beings and most animals, and their state of sleeping is also different, which is not easy to be observed.
When dolphins sleep, one of their eyes is open and the other is closed. Researchers have studied this state in dolphins and found that one side of the dolphin's brain is at rest, but the other side is still awake. Therefore, in the process of dolphins sleeping, they can still maintain the state of movement, can still swim. In this way, from the appearance, dolphins are always active, as if they will not rest.
As mentioned above, dolphins sleep in a special way. Their left brain and right brain rest alternately. When one side of the brain is in a resting state, one side will still operate, so that dolphins can swim all the time. Generally speaking, they sleep at no fixed time, sometimes during the day, sometimes at night. They may sleep with one eye closed and the other eye open. Their bodies may still swim in the water, but if they are very comfortable, they will float in the water and not swim.
