You'll probably hear the parrotfish before you see them. The animals chomp through solid rock and coral with fused beaks. When you're snorkeling on one of Hawaii's reefs, the noise is unmistakable.

Bradley Eyre received funding from the Australia Research Council. Carbonate sands on coral reefs will start dissolving within about 30 years, on average, as oceans become more acidic, new research ...

This week's decision to dump dredged sand and silt in Great Barrier Reef waters has prompted warnings that the troubled ecological treasure is one step closer to a spot on World Heritage's "list of ...

Mangrove forests are rapidly expanding on remote sand cays in the northern Great Barrier Reef, capturing carbon and helping tiny islands grow despite rising sea levels. Our small inflatable boat pulls ...