Blog Seven; The Great Barrier Reef

1) The Great Barrier Reef is considered the "largest living structure on Earth."
2) Coral extracts the compound Calcium Carbonate (CaCO3) from the ocean to create solid tentacles.
3) Red algae impacts the structure of coral because they act like a glue to hold together and for large mounds of coral.
4)The Great Barrier Reef became a national park in the year 1975.
5) About 33% of the reef is protected from fishing.
6) Scientists believe that the current reef is about 20 thousand years old. But the ancient reef is found to be about half a million years old.