Giant moray

Photo: Tsu Soo Tan · CC BY-NC

Giant morays are resident in crevices on the Marigondon wall from 15 m down to the cave zone, with large individuals reaching 2.5 m and occupying the same lair for months or years. They are cooperative hunters — documented working with Napoleon wrasse to flush fish from reef crevices — and their rhythmic jaw-pumping is a respiratory mechanism, not a threat display. The cave wall's sponge and coral coverage provides abundant shelter sites and prey. Most reliably seen at dusk when they become active, but resting individuals are visible on virtually every daytime dive.