School of fish swimming underwater. Dead corals and sea shells.
Dead coral stones on water surface background. Calcic skeleton of reef polyps. Marine invertebrates. Colonies of many identical individual polyps. Reef builders. Sea wave and rocks
Marine biologist analyzing tropical seashore organism. Male hand hold dead coral polyp. Seashore with sea water surface background. Study plants and animals in marine environment
Dead coral stones on water surface background. Calcic skeleton of reef polyps. Marine invertebrates. Colonies of many identical individual polyps. Reef builders. Sea wave and rocks
Petrified coral stones and rocks under water surface. Sea or ocean on beach. Stony coral polyp
