Ocean heat records have been breaking for months. This is the first global evidence of the impacts on sea life.

The world's biggest coral system had seen only two mass bleaching events before 2016.

Parts of the reef see the most coral growth in 36 years - but it is highly vulnerable to threats.

It is the fourth time since 2016 that such a devastating event has been found, Australia says.

New funding for the Great Barrier Reef will improve water quality but not address its central threat.

Australia's natural wonder faces a battle to survive - here's a simple guide.

Canberra lashes out as the UN says the reef should join a list of World Heritage Sites "in danger".

Warmer sand temperatures from climate change are leading to way more females being hatched than males.