Glasseye snapper

Photo: spirula · CC BY-NC

Glasseye snappers are nocturnal predators with dramatically oversized eyes adapted for low-light hunting, and they spend daylight hours packed into the darker recesses of Devil's Grotto where their reddish colouration — which appears grey at depth in natural light — provides camouflage against the shadowed walls. Their large eyes make them a standout subject for wide-angle photography when torch beams reveal their vivid colouration. They feed nocturnally on small fish and crustaceans just outside the cave entrances.