The diverse and abundant marine life that coral reefs support creates spectacular scenes that are enjoyed by hundreds of thousands of divers from all over the world. While to most, the word coral will conjure up images of people snorkeling in warm, clear blue waters, coral reefs are also known to exist more than a kilometre beneath the ocean’s surface, in complete darkness where the temperature of the water is just few degrees above freezing. The role that healthy coral plays in supporting marine life, not only in the shallows of the tropics but also in the deep ocean, is seen as one of the key essential variables for scientists to form a better understanding of the marine ecosystem.
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