Coral is known as "the tropical rain forest on the seabed" , it provides homes for many marine animals and is an important part of the earth's ecology.But in recent years, coral bleaching has appeared more and more due to global warming and marine pollution. Without coral, some marine animals lost their habitat. The work uses styrofoam to accumulate the image of coral, implying coral bleaching,death and disappearance. The negative shape of coral dotted the eyes of fish. If we do not take positive measures to intervene, then everything will eventually disappear like a bubble. We should do the right thing,act for the planet, for all species, for each other's best interests.