![]() ![]() These include the endangered loggerhead sea turtles and Pacific green turtles that use the reef to lay their eggs. Six of the world's seven species of sea turtles are found in the Great Barrier Reef. Among other things, there are 80 species of soft corals and seapens, over 1,500 species of fish, 1,500 species of sponges, 5,000 species of molluscs, 800 species of echinoderms such as starfish, 500 different species of seaweed and 215 species of birds. The Great Barrier Reef is the largest coral reef system on earth with 359 hard coral species and providing habitat for a variety of species. Every visitor to this sensitive region should be aware of their responsibility and do their part to preserve this unique natural reef. Tourism is also a reason to blame for this. There's the change in the global climate and the increasing pollution of the sea through shipping and the sewage through the increasing settlement of the east coast are all some factors. Unfortunately, due to climate change, the reef is extremely endangered and various factors are responsible for this. The Great Barrier Reef is the largest coral reef on earth has been a UNESCO World Heritage Site since 1981, one of the earliest world heritage sites. Understand See also: Australasian wildlife A coral sphere seen while snorkelling on Flynn Reef off Cairns Islands ![]()
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