Massive 'Doughnut' Reef Discovered Behind Australia's Great Barrier Reef
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From the air, it looks like a 2,300-square-mile field of submerged doughnuts on the ocean floor. The limestone circles amount…
From the air, it looks like a 2,300-square-mile field of submerged doughnuts on the ocean floor. The limestone circles amount…
From the air, it looks like a 2,300-square-mile field of submerged doughnuts on the ocean floor. The limestone circles amount…
From the air, it looks like a 2,300-square-mile field of submerged doughnuts on the ocean floor. The limestone circles amount…
From the air, it looks like a 2,300-square-mile field of submerged doughnuts on the ocean floor. The limestone circles amount…