Scientists have systematically mapped and sampled the “green doughnuts” in detail for the first time since the enigmatic seascape lurking at the bottom of the northern Great Barrier Reef was discovered in the 1970s—revealing an expansive ecosystem teeming with life.
Click here for original story, Halimeda bioherms: One of the poorest understood parts of the Great Barrier Reef
Source: Phys.org