Everyone likes dolphin's friendly appearance and naughty personality. Dolphins are creatures with high IQ. However, they are now facing many difficulties. Humans kill a lot of fish and marine life, leaving dolphins without food, discharging a lot of sewage and wastewater, causing environmental pollution and killing a large number of dolphins. The most serious thing is that some countries kill food dolphins and push them to the wall. We are angry at this kind of thing and once again call on everyone to protect dolphins, protect the environment and create a better future.