Ningaloo and Great Barrier Reef hit by 'profoundly distressing' simultaneous coral bleaching events / Can artificial intelligence save the Great Barrier Reef? / Big moms make big impact--half of the coral trout caught on Great Barrier Reef found to be from marine reserves / 'Catastrophic': Great Barrier Reef hit by its most widespread coral bleaching, study finds / Coral bleaching on Great Barrier Reef reaches 'catastrophic' levels / School chaplain killed in shark attack on Australia's Great Barrier Reef / Australian youth pastor killed in shark attack on Great Barrier Reef / Shark kills man fishing in Australia's Great Barrier Reef / Parts of Great Barrier Reef dying at record rate, alarmed researchers say / Not too warm and not too cold--finding the Goldilocks Zone of the Great Barrier Reef