Specialists say they cannot rule out the possibility that the two diseases or others might be threatening the existence of coral species.

Home to more than 220 coral species, which is almost half the recorded species of the entire Indian Ocean.

Most people would be surprised to know that shallow water corals encompass only 35 percent of the world's coral species.

And the reefs survive in conditions that would kill coral species in other parts of the world.

In addition there are about 50 coral species, many gorgonians, and sponges.

It is the most common coral species in Hawaii.

While the pink species is best known, coral, white, and yellow species are gaining popularity.

Every coral species in park waters is considered protected by either federal or state regulations.

The region is part of the coral triangle which has 500 plus coral species.

In fact, before recent expeditions, there was only one known coral species in the entire chain.