Oceanographers have uncovered the secret of the colorful and varied colors of coral reefs  It turns out that there are many mutations in the genes responsible for the production of pigments in corals  The more genes are activated, the brighter the color of the coral  These pigments have a protective effect on the seaweeds that live with corals and provide food for them
In a place with strong sunlight, in order to prevent the seaweed from being killed by the sun, the coral polyps will produce more pigments, and the color of the coral will be more vivid
Defend the seaweed