Researchers have established that reef fish see colours that humans cannot.
A team from Professor Justin Marshall's Sensory Neurobiology Lab ran a series of behavioral experiments with trigger fish, in a bid to decode how they see the world.
Professor Marshall said previous studies had looked into how goldfish saw colour, but this was the first study into how reef fish discriminate colours.
"Coral reefs are the most colourful environments in the world, and it's now become clear that reef fish see colours we can't," Professor Marshall said.
"Some reef fish, such as the anemonefish 'Nemo' and other damselfish can see the UV wavelengths we protect ourselves from.
"Triggerfish, on the other hand, see more or less the same colour range we do but their colour discriminations are different.