Tropical seas are renowned for their variety of colour and fascinating marine life. Coral reefs have a unique place in this aquatic world and indeed their surrounding environment. Despite its "plant like" appearance, coral is actually a marine animal of the invertebrate species having no spinal columns, like jellyfish. Coral reefs are sensitive ecosystems, which are under treat from human and natural elements alike. Reefs have formed over millions of years, and their scientific study teaches us many things about the complex changes that our environment has undergone through the ages. …
