Coral Reefs

                                                                          Coral Reefs

 

Coral reefs are a bunch of coral animals is a type of plant symbiosis with algae called zooxanhellae.
Strangely shaped coral animal, resembling a stone and has a color and shape of various arts. These animals can be called polyps, are the main reef-forming animals that produce calcium. Polyps takes time for thousands of years to form reefs.