Great Barrier Reef Blog #1

1. The Great Barrier Reef is considered the largest living structure in the world.
2. Coral extracts calcium carbonate.
3. Red Algae is like glue for the parts of the coral, keeping it together.
4. It became a national park in 1975.
5. 33% of the reef is protected from fishing.
6. The reef today is roughly 20,000 years old, and scientists believe that there is a reef under that one that is nearly 500,000 years old.