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7 Things To Know About Great Barrier Reef

Great Barrier Reef

1.The massive reef system covers 133,000 square miles and stretches 1,200 miles along Australia's northeast coast.

2.It is the most massive living structure on Earth.

3.The reef is so expansive that rock could cover all of New Jersey, with coral to spare.

4.The reef hosts 5,000 types of mollusks, 1800 species of fish, 125 kinds of sharks, and innumerable miniature organisms.

5.A popular diving and tourist destination, the reef contributes more than $5 billion annually to the country's economy.

6.The ecosystem was added to the UNESCO World Heritage list in 1981.

7.In 2016, scientists discovered an unprecedented die-off in the reef, prompting the Australian government to issue its highest response level.