Prominent oceanic features composed of hard, limy skeletons produced by coral animals; usually formed along edges of shallow, submerged ocean banks or along shelves in warm, shallow, tropical seas. coral rubble

A habitat for various aquatic life, that is made of hard, limestone structures, usually red or pink in colour.

Prominent oceanic features composed of hard, lime skeletons produced by coral animals; usually formed along the edges of shallow, submerged ocean banks or along shelves in warm, shallow, tropical seas.

Rock-like limestone (calcium carbonate) structures built by corals along ocean coasts (fringing reefs) or on top of shallow, submerged banks or shelves (barrier reefs, atolls), most conspicuous in tro [..]

Large living structures of calcium carbonate produced primarily by coral polyps. Polyps are tiny animals that build and surround themselves with an outer skeleton of calcium carbonate. Over time, repe [..]

Coral reefs are built up over hundreds of years by colonies of small animals, called coral polyps, and their skeletons of calcium carbonate. Coral reefs cover less than 1% of the ocean area but are home to one-third of all marine fish species.

A ridgelike or moundlike structure composed of corals and other aquatic organisms, occurring in shallow water along some subtropical and tropical shorelines.

Marine ridges composed of living Corals, Coral skeletons, calcareous algae, and other organisms, mixed with Minerals and organic matter. They are found most commonly in tropical waters and support oth [..]

Prominent oceanic features composed of hard, lime skeletons produced by coral animals; usually formed along the edges of shallow, submerged ocean banks or along shelves in warm, shallow, tropical seas.