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yes it was, and is, being formed by animals.
The Great Barrier Reef is a coral reef.
The Great Barrier Reef was formed over two thousand years ago by nature itself.According to the Great Barrier Reef Marine Park Authority the current, living reef structure is believed to have begun growing on an older platform of coral reef about 20,000 years ago. The older coral reef platform is believed to be 500,000 to 600, 000 yeas old.
The proper name for the Great Barrier Reef is simply "Great Barrier Reef".
No. Although Osprey Reef is in the Coral Sea, where the Great Barrier Reef is located, it is actually separate from the Great Barrier Reef.
The reef wasn't built. It was formed naturally, about four thousand years ago..
The Great Barrier Reef is a coral reef ecosystem.
The Great Barrier Reef is the largest reef system in the world.
This is a very complex subject and would take to long to explain on this forum so I have sorted out a related link Named (How Was The Great Barrier Reef Formed) that you can click on below to find out what you need to know.
The great barrier reef is awesome
The Great Barrier Reef has not been destroyed
The Great Barrier Reef is the world's largest coral reef.