World's largest coral system…

World's largest coral system, stretching more than 2,300 kilometres along the coast of Queensland in north-eastern Australia. Made up of nearly three thousand individual formations and around nine hundred islands, it can be seen from space and shelters thousands of species of fish, molluscs, turtles, sharks and dolphins. Listed as a World Heritage Site in 1981, it has suffered repeated mass bleaching events caused by warming seas in recent decades.

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