Robot drone could protect Great Barrier Reef by killing crown-of-thorns starfish

Researchers say underwater drone can monitor coral bleaching and inject coral-eating starfish with vinegar

An underwater drone that can keep watch over the Great Barrier Reef's health and kill invading species is ready to be put to the test.

Researchers from Queensland University of Technology say their robot reef protector can monitor coral bleaching, water quality, pest species, pollution and sediment buildup.