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
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
Male conservationist hand holding dead coral at seashore with sea water surface background. Marine invertebrates. Colonies of many identical individual polyps. Scientific experiment
Water sea or ocean on beach with petrified coral stones and rocks. Sea water surface. Colony of myriad genetically identical polyps
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
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A coral reef with a variety of corals and sponges
Round coral colony and fishes swimming among reefs underwater
Colorful coral colonies under the turquoise tropical ocean waters - turning aerial view
