Puzzle (500pc) National Geographic : Ocean Life
You can spend a lifetime exploring the Great Barrier Reef and still not see all of this colorful coral realm—it’s nearly the size of Montana. The reef system is the largest structure on Earth built by living organisms, tiny hard corals that are no bigger than a fingernail. When corals die in countless numbers their limestone-secreted skeletons build upon one another to form the bedrock of the reef.
Some 2,000 different fish species have been identified on the Great Barrier Reef, and new ones are found each year.
Explore the Great Barrier Reef as you piece together this puzzle.