First, the existence of dolphins We all know that dolphins are non-human animals with the highest level of intelligence, and they have much more developed brain tissues than other animals. Moreover, the communication between dolphins is also very close, and related research shows that the higher the frequency of communication between similar animals, the higher the intelligence level of this group will gradually improve, and it is hereditary. In addition, some studies have found that dolphins, as underwater mammals, compare their sleep habits with those on the ground, and find that dolphins sleep alternately by the two hemispheres of the brain, rather than fast and slow phases. The left brain sleeps and the right brain is awake, which is a very powerful alternating state, and we humans do not have this skill.
Second, selfishness, whether it is scientific research or love or some illegal organizations, is actually raising dolphins with selfishness. Here, I want to start with a documentary "Dolphin Bay", which completely records the human abuse of dolphins, as well as dolphin depression caused by captivity, which eventually leads to dolphin suffocation and death (suicide caused by depression). This record clearly shows the world the harm caused by dolphins being kept in captivity and the cruelty of being killed for no reason. These scenes are warning us to live in harmony with nature, not to hurt human friends because of our own selfishness, and not to bring undue harm to dolphins because of our own selfishness.
Dolphins, as good friends of human beings, should understand, respect and care from the perspective of equality. Scientific research shows that dolphins have medical assistance to human beings. As long as we communicate with them equally, we can not only improve our health, but also do no harm to the health of dolphins.