Crown-of-thorns starfish are one of the greatest threats to Australia's Great Barrier Reef, and a team of researchers have a robot that's going to fight back.
The starfish species, which is native to the Indo-Pacific region, feeds on coral and a serious outbreak can have a devastating impact on reef health. Some estimates suggest the organism has accounted for a 40% decline in coral cover in the World Heritage-listed site.
Image: QUT
