Scientists have discovered one of the world's largest coral reefs off the coast of Tahiti, a vast area of "pristine" rose-shaped corals deep under water apparently unharmed by climate change, UNESCO announced Thursday.
The area of healthy coral in cooler waters between 30 and 65 metres (98 to 213 feet) deep is a "highly unusual" find, UNESCO said, and could suggest there are more reefs in the ocean depth that may be safer from the impacts of warming waters.