Blog 6/ Great Barrier Reef part 1 :)

1) The Great Barrier Reef is considered the largest living structure on Earth.

2) Coral extracts calcium carbonate to make solid tentacles.

3) Red algae impacts the structure by acting like a glue to help form structures.

4)The Great Barrier Reef became a national park in 1975.

5)  About 33% of the reef is protected from fishing.

6) Scientists believe that the current reef is 20,000 years old and the ancient reef, 500,000 years old.