Deepest Corals in Great Barrier Reef Discovered

A new exploration by a remote-operated submersible has found the reef's deepest coral yet.

January 3, 2013
3:04 AM EST
Deep-sea corals found lower than ever seen before in the Great Barrier Reef. The corals are four times deeper than most scuba divers can dive. CREDIT: © Catlin Seaview Survey
WATCH VIDEO: What Would Happen If Sharks Disappeared?