A vividly coloured fish could be the key to saving the Caribbean’s coral reefs from plummeting into terminal decline, scientists claim.
Their research forecasts that reefs risk being damaged beyond repair by the influx of seaweed.
BBC News website: Parrotfish to aid reef repair

Jennifer Marohasy BSc PhD has worked in industry and government. She is currently researching a novel technique for long-range weather forecasting funded by the B. Macfie Family Foundation.
Aye me hearies and when they has eaten the weed everyone can eat the fish. A win win except for the poor little fishies, aargh.
Unless they are like cane toads.