Researchers working with the Royal Australian Navy have discovered an extensive reef system behind the famous Great Barrier Reef, mapping a huge network of donut-shaped features that measure between 650 and 984 feet across.
The formations are called bioherms, and were made by a type of algae called halimeda. Shaped like donuts, the structures can be as deep as 33 feet in their center.
full article - Scientists discover vast reef behind Great Barrier Reef | Fox News
The formations are called bioherms, and were made by a type of algae called halimeda. Shaped like donuts, the structures can be as deep as 33 feet in their center.
full article - Scientists discover vast reef behind Great Barrier Reef | Fox News
